Terms of sale

1. Scope

These terms of sale apply to the services provided by Willy Tran EI, trading as VINGT Consulting (SIREN 992 830 703), hereinafter "Vingt", to its business clients: website design, search engine optimisation, task automation, custom software, maintenance and hosting.

They apply to every order, unless specific conditions are agreed in writing in the quote, and prevail over the client's purchasing conditions.

2. Quotes and orders

• Every service is covered by a free, detailed quote, valid for 15 days.
• The order becomes firm when the quote is signed (or accepted in writing by email) and the deposit set out in section 4 is paid.
• Any request outside the quote (new page, new feature…) is covered by an additional quote, accepted before the work is done.

3. Prices

The price is fixed and stated in the quote: it doesn't change along the way without your written agreement.

Prices are in euros. VAT not applicable, article 293 B of the French General Tax Code (in French).

Third-party service costs (domain name, hosting, licences, tool subscriptions) are borne by the client. They are stated in the quote and are either paid directly by the client, in their own name, or re-invoiced at cost.

4. Payment

• A deposit of 40% of the quote is due on signature.
• The balance is invoiced on delivery (website launch or tool go-live). For a project delivered in stages, each delivered stage is invoiced.
• Recurring services (maintenance, hosting, follow-up) are invoiced at the frequency set out in the quote.
• Invoices are payable by bank transfer within 15 days of their issue date, unless another period was agreed in writing before the order. No discount is granted for early payment.
• If payment is not received within that period, services may be suspended (see section 5).

5. Late payment

Any late payment automatically incurs, from the day after the due date:

• late-payment penalties at the interest rate applied by the European Central Bank (ECB) to its most recent refinancing operation, plus 10 percentage points (article L441-10 of the French Commercial Code), i.e. 12.40% for the second half of 2026 (ECB rates, details on service-public.gouv.fr, in French);
• a fixed recovery fee of €40 (articles L441-10 and D441-5 of the French Commercial Code), without prejudice to additional compensation on proof.

If payment is not made by the due date and a written reminder goes unanswered, Vingt may suspend all or part of the services (work in progress, maintenance, hosting, tools in place) until full payment, without this suspension being held against it.

6. Timelines and collaboration

Timelines are set out in the quote. They assume the client provides on time what depends on them: content, photos, access to their tools, approvals.

Any delay in providing material or approvals shifts the schedule accordingly, with no penalty for either party.

7. Delivery and approval

Each delivery is presented to the client for approval.

The client has 10 business days after delivery to report in writing any non-conformity with the quote; after that, or as soon as the work goes live at their request, the delivery is deemed accepted.

Fixing non-conformities reported within that period is included, at no extra cost.

8. Intellectual property

• The domain name, the content provided by the client and their data belong to the client from the start.
• Upon full payment, the client holds the exploitation rights to the elements created specifically for them (text, designs, development), worldwide and for the full duration of the rights.
• Third-party components (open-source software, fonts, image libraries, off-the-shelf tools) remain subject to their own licences.
• Vingt retains its generic know-how, methods and tools, which may be reused for other projects.
• Unless the client objects in writing, Vingt may mention their name and present the work as a reference.

9. Maintenance, hosting and subscriptions

The content, price and duration of recurring services are set out in the quote.

Either party may end them at any time in writing, with 1 month's notice. At the end of the contract, Vingt hands over the client's files and data in a usable format and helps transfer their website or tool.

10. Personal data

Each party complies with the General Data Protection Regulation (GDPR).

When Vingt processes personal data on the client's behalf (customer file, custom software, automations), it acts as a processor within the meaning of article 28 of the GDPR (in French): only on the client's instructions, with appropriate security measures, under a duty of confidentiality, and with the data returned or deleted at the end of the contract.

Vingt's clients' data is processed according to our privacy policy.

11. Liability

• Vingt is bound by an obligation of means: it applies its expertise to reach the agreed objectives.
• Rankings in Google's results depend on Google alone: they cannot be guaranteed.
• Vingt is not liable for outages or changes in third-party services (host, tools, platforms), nor for indirect damage (loss of revenue, customers, or data not backed up by the client).
• In any event, each party's liability is limited to the amount paid for the service concerned over the previous 12 months.

12. Force majeure, confidentiality, termination

Neither party is liable for a failure caused by force majeure within the meaning of article 1218 of the French Civil Code.

Each party keeps confidential the other's information it learns during the engagement.

If a party commits a serious breach that is not remedied 15 days after formal notice, the other party may terminate the contract in writing; work completed up to that point remains payable.

13. Governing law and disputes

These terms are governed by French law.

In the event of a dispute, the parties first seek an amicable solution; they may refer the matter free of charge to the French Business Mediator (Médiateur des entreprises). Failing agreement, the courts of Paris have sole jurisdiction.

This page is a translation provided for convenience. In case of any discrepancy, the French version prevails. Read the French version.