Last updated: 20 September 2026
Draft for legal review
These Terms of Service (the Terms) govern use of the website and services supplied by Lambda Twelve PC / Lambda Twelve IKE, trading as Lambda Twelve (Lambda Twelve, we, us or our).
1. Who we are
Lambda Twelve PC is established at Efploias 11, 18537 Piraeus, Attiki, Greece, GEMI 145563001000, VAT EL800949070. Contact: hello@lambda-twelve.com. Legal enquiries: legal@lambda-twelve.com.
2. Scope and contract documents
These Terms apply to services ordered from Lambda Twelve unless a written agreement expressly provides otherwise. The contract may also include an online or written order (the Order), statement of work (SOW), service-specific description, Service Level Agreement (SLA), Acceptable Use Policy (AUP) and, where applicable, Data Processing Agreement (DPA).
If documents conflict, the following order of precedence applies unless expressly agreed otherwise: (1) signed bespoke agreement or SOW; (2) Order; (3) DPA for data-protection matters; (4) service-specific terms/SLA; (5) these Terms; (6) AUP.
Mandatory rights that apply to consumers cannot be excluded or reduced by these Terms.
3. Eligibility and customer information
You must provide accurate information reasonably required to create and administer an account, invoice you, supply the service, prevent fraud and comply with law. If you order for an organisation, you represent that you have authority to bind it.
Consumers must be at least 18 years old and legally capable of entering the contract.
4. Orders and formation of contract
Product pages, quotations and estimates are invitations to order unless expressly stated otherwise. An Order becomes binding when Lambda Twelve accepts it, activates the service, or sends an express order confirmation, whichever occurs first.
Before an online Order is submitted, the checkout should identify the selected service, price, taxes where applicable, billing frequency, initial or minimum term, renewal arrangement, cancellation conditions and any material service limitations.
We may reject an Order where reasonably necessary, including because a service is unavailable, payment or identity checks fail, the requested use would breach law or the AUP, or information supplied is materially inaccurate.
5. Prices, VAT and payment
Prices are those shown in the Order. VAT and other taxes are applied as required by law. Business customers must provide accurate invoicing and VAT information.
Online card and supported payment-method processing may be provided by Stripe. Lambda Twelve does not require customers to provide card credentials directly to Lambda Twelve where Stripe's payment interface is used.
Billing may be monthly, quarterly, six-monthly or annually as stated in the Order. Unless the Order provides otherwise, fees are payable in advance for the applicable billing period.
If payment becomes overdue, Lambda Twelve may give notice and, subject to mandatory law and reasonable safeguards against disproportionate interruption, suspend affected services until amounts due are paid. Suspension does not waive amounts already due.
6. Term, renewal and ordinary cancellation
Unless an Order specifies another minimum term, the minimum service term is one month.
Unless otherwise stated in the Order, either party may give at least 14 days' notice of ordinary cancellation. Customer cancellation takes effect at the end of the then-current monthly service period.
Where the customer has prepaid for a longer billing period, Lambda Twelve will refund fees attributable to whole future monthly service periods after the effective cancellation date. The current monthly service period remains available and chargeable in full. For example, if six months are prepaid and cancellation becomes effective at the end of the first monthly service period, the remaining five whole months are refunded.
This ordinary cancellation policy is separate from, and does not limit, mandatory consumer withdrawal, conformity, termination or refund rights.
7. Consumer right of withdrawal
If you are a consumer and conclude a service contract at a distance, you generally have a statutory right to withdraw from the contract within 14 days from conclusion, subject to applicable exceptions and conditions.
To exercise the right, send an unambiguous statement to legal@lambda-twelve.com or to Lambda Twelve PC, Efploias 11, 18537 Piraeus, Attiki, Greece. You may use the model form at the end of these Terms, but it is not mandatory.
If you expressly request that a service begin during the withdrawal period and then validly withdraw before the service has been fully performed, you may be required, where permitted by law, to pay an amount proportionate to the service supplied before withdrawal. Any waiver or loss of a statutory withdrawal right applies only where the requirements of applicable consumer law have been satisfied.
Nothing in this section limits statutory rights relating to non-conforming digital services or other mandatory consumer remedies.
8. Customer responsibilities
You are responsible for:
- use of your account and credentials and for taking reasonable steps to keep them secure;
- the legality of information, software and content you upload, store, transmit or make available;
- licences and permissions required for customer-provided software and content;
- configuring and maintaining customer-managed software and systems except to the extent management is expressly included in the Order;
- maintaining appropriate independent copies or backups where backup is not expressly included; and
- complying with the AUP and applicable law.
You must promptly notify Lambda Twelve if you reasonably suspect compromise of credentials or misuse of a service.
9. Acceptable use and customer content
Customers may upload and use content they are legally entitled to use. Customer content remains the customer's responsibility. The AUP forms part of these Terms.
Lambda Twelve does not assume a general obligation to monitor customer content. We may investigate notices, technical indicators or other information indicating unlawful activity, security threats or AUP violations and may take proportionate action where permitted or required by law.
10. Suspension and urgent action
Lambda Twelve may suspend or restrict all or part of a service where reasonably necessary to:
- address a material security threat or active compromise;
- stop conduct causing material harm to our systems, networks, other customers or third parties;
- comply with a binding legal or regulatory requirement;
- respond to illegal content or activity in accordance with applicable law;
- address a material AUP breach; or
- address material non-payment after appropriate notice.
Where circumstances permit, we will give notice and a reasonable opportunity to remedy the issue before suspension. Urgent security, legal or abuse situations may require immediate action. We will seek to limit action to what is reasonably necessary.
11. Support
Unless an Order states otherwise, standard support is available on Greek business days between 10:00 and 18:00 Europe/Athens by email at support@lambda-twelve.com.
Telephone support, 24x7 coverage, guaranteed response times, named engineers and other enhanced support apply only where expressly included in the Order or SOW.
12. Backups and recovery
Unless an Order expressly states otherwise, the default backup arrangements are:
- Shared Hosting: one daily recovery point with a rolling retention of seven days.
- VPS: three daily recovery points, one weekly recovery point and one monthly recovery point.
- Dedicated Server: no backup service included. Customers are encouraged to provision suitable backup storage and remain responsible for operating their backup process unless a managed backup service is ordered.
- Private Cloud: no backup service included by default. PBS-based VM backup and storage allocation may be provided where stated in the Order.
Backups are recovery facilities, not archival storage unless expressly sold as archival storage. Retention periods are rolling and older recovery points are deleted as newer recovery points are created.
No backup system eliminates the possibility of data loss. Customers whose service includes backup should still maintain independent copies where the value or regulatory importance of their data reasonably requires it.
13. Availability and maintenance
Where an SLA applies, availability is governed by the SLA. Otherwise, Lambda Twelve will use reasonable care and skill to operate the service but does not promise uninterrupted availability.
Scheduled maintenance qualifying under the SLA is excluded from availability calculations. Emergency maintenance may be performed without the normal notice period where reasonably necessary to protect security, integrity or availability, with notice provided as soon as reasonably practicable.
14. Software development and professional services
For development, integration, consulting and project work, scope, deliverables, acceptance criteria, dependencies, timetable, intellectual-property treatment and fees should be specified in the applicable SOW or Order.
Unless expressly agreed otherwise, third-party and open-source software remains subject to its own licence terms. Lambda Twelve does not transfer ownership of third-party components merely because they form part of a deliverable.
15. Intellectual property
Each party retains intellectual property it owned before the engagement. Ownership or licensing of bespoke deliverables is governed by the applicable SOW or Order. In the absence of an express project-specific provision, no transfer of Lambda Twelve pre-existing tools, reusable libraries, know-how, deployment systems or general-purpose components is implied.
Customer data and customer-provided content remain the customer's or its licensors' property.
16. Data protection
Each party must comply with applicable data-protection law.
For personal data Lambda Twelve processes for its own business purposes, the Privacy Notice applies. Where Lambda Twelve processes personal data on behalf of a customer as processor, the parties will enter into or be bound by an applicable DPA satisfying Article 28 GDPR. The public Privacy Notice is not a substitute for that DPA.
17. Confidentiality
Each party must use reasonable measures to protect non-public information disclosed by the other party and identified as confidential or which reasonably should be understood to be confidential. Confidential information may be used only for performing or receiving the services and may be disclosed where required by law.
This obligation does not apply to information that is public without breach, already lawfully known, independently developed, or lawfully obtained from another source without confidentiality restrictions.
18. Warranties
Lambda Twelve will provide services with reasonable care and skill and in material accordance with the applicable Order and any mandatory statutory standards.
Except to the extent prohibited by law or expressly stated in the contract, no warranty is given that a service will be uninterrupted, error-free or suitable for a purpose that was not communicated to and accepted by Lambda Twelve.
Consumer statutory guarantees and remedies remain unaffected.
19. Liability
Nothing in these Terms excludes or limits liability where exclusion or limitation is prohibited by applicable law. This includes liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, for gross negligence or wilful misconduct, and any liability that cannot lawfully be limited in relation to consumers.
Consumers. If you are a consumer, your statutory rights are not affected by this section and the limits below do not reduce any remedy the law gives you.
Business customers. Subject to the first paragraph of this section, and except where a signed agreement or statement of work says otherwise:
- our total aggregate liability arising out of or in connection with a service, whether in contract, tort (including negligence), breach of statutory duty or otherwise, is limited to the charges paid by you for that service in the six months immediately preceding the event giving rise to the claim;
- we are not liable for loss of profit, loss of revenue, loss of anticipated savings, loss of business or goodwill, or for indirect or consequential loss, in each case however arising; and
- we are not liable for loss of or damage to data to the extent it would have been prevented by the customer keeping its own backups, where the service purchased does not include a backup obligation on our part. Section 12 sets out which services include backups by default.
Where a service is supplied under a signed agreement or statement of work containing its own liability provisions, those provisions apply instead of this section.
20. Force majeure
Neither party is liable for delay or failure caused by events beyond its reasonable control to the extent and for the period such event prevents performance, provided the affected party takes reasonable steps to mitigate the effect. Payment obligations for services already supplied are not excused solely by this clause.
21. Changes to services and terms
We may update these Terms for legal, security, operational or service reasons. Material changes affecting an existing paid service will be notified in reasonable time before taking effect where required by law or contract. Changes will not retroactively remove accrued rights.
If a material change adversely affects an ongoing service and mandatory law or the applicable Order gives the customer a termination right, that right will be respected.
22. Termination for cause
Either party may terminate for a material breach that is not remedied within a reasonable cure period after written notice, where cure is possible. Immediate termination may be available where required by law or where the breach is incapable of cure or creates a serious security, legal or abuse risk.
On termination, access to services and customer data may cease. Customers are responsible for arranging export or migration before the effective termination date. Any post-termination retrieval period expressly promised in an Order will apply.
23. Governing law and disputes
These Terms are governed by the laws of Greece.
For business customers, the courts of Piraeus, Greece shall have jurisdiction, subject to any mandatory rule or express written agreement to the contrary.
For consumers, this clause does not deprive you of mandatory protections or jurisdiction available under applicable consumer law. Consumers may also have access to competent consumer-protection and alternative-dispute-resolution bodies as provided by applicable law.
24. General provisions
If a provision is held unenforceable, the remainder continues in effect to the extent permitted by law. Failure to enforce a provision is not a waiver. Neither party may assign the contract contrary to mandatory law; business-customer assignment rules may be further specified in an Order.
Notices under the contract may be sent electronically to the contact addresses associated with the account or Order unless law requires another form.
25. Contact
General: hello@lambda-twelve.com
Support: support@lambda-twelve.com
Legal/privacy: legal@lambda-twelve.com
Abuse: abuse@lambda-twelve.com
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Complete and send this form only if you wish to withdraw from an eligible consumer contract.
To: Lambda Twelve PC, Efploias 11, 18537 Piraeus, Attiki, Greece - legal@lambda-twelve.com
I hereby give notice that I withdraw from my contract for the following service:
Service: _______________________________________________
Order/account reference: ________________________________
Contract/order date: ____________________________________
Consumer name: _________________________________________
Consumer address: ______________________________________
Email: _________________________________________________
Date: __________________________________________________
Signature (only if submitted on paper): __________________