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Terms of Service

Last updated: 9 November 2026

This is a translation for convenience. The Portuguese version prevails in case of doubt.

Scope

These terms govern the use of F3ST, the cashless payment platform for events, provided by Sérgio Tiago Gomes Serra, sole trader, tax ID 244831726 ("F3ST", "we"), to the organizations that contract it ("Organizer" or "Organization").

1. Scope and acceptance

  1. F3ST is exclusively for legal persons and professionals who organize events in the course of their business. It is not for consumers.
  2. The terms are accepted by accepting, by email, the commercial proposal stating the agreed percentage ("Proposal"), and in any case on the first use of the backoffice or the app by a member of the Organization. The Proposal and these terms form the contract; in case of conflict, the Proposal prevails.
  3. Whoever accepts on behalf of an Organization declares they have authority to bind it.

2. The service

  1. F3ST provides a backoffice and a point-of-sale app to register NFC cards, open tabs on them, charge consumption to them, collect them on the way out, follow the figures live and issue the corresponding invoices through the Organizer's own certified invoicing software account.
  2. F3ST is a software service. It is not a payment institution, does not hold the Organizer's customers' funds and is not a party to the sales made at events. The seller is always the Organizer.
  3. The service may be changed, improved or have features removed. Changes that materially reduce the service are announced 30 days in advance.

3. Account, members and access

  1. The Organization's account is created by F3ST once the Proposal is accepted. The Organization invites its team members and sets what each may do.
  2. The Organization is responsible for everything done through its members' accounts, for keeping credentials safe and for removing access from those who leave the team.
  3. Access is personal. It may not be shared or transferred to third parties.

4. Organizer's obligations

The Organizer is solely responsible for:

  • holding the business registration, licences and permits needed to run the event and sell what it sells, including compliance with rules on the sale of alcoholic drinks and opening hours;
  • having an active account in invoicing software certified by the Portuguese tax authority, with registered series, and connecting it to F3ST; issuing the invoices, their fiscal content and reporting them to the tax authority are its responsibility;
  • configuring the products, prices and VAT categories of each event correctly, including the tax region where it takes place;
  • informing its customers clearly, before handing them a card, of the applicable conditions, in particular prices and any minimum spend, and making sure a minimum spend may lawfully be required at the venue where the event takes place;
  • complying with data protection law regarding its customers' and team's data, including informing them about the processing;
  • the equipment it uses (phones, NFC readers, cards, internet connection) and its working order.

F3ST may not be used for unlawful purposes, to circumvent tax obligations, or in a way that harms the platform or other organizers.

5. Price and payment

  1. F3ST is paid a percentage of the amount the Organizer collects on tabs paid through the platform, stated in the Proposal ("Fee"). There is no monthly charge or set-up cost unless the Proposal says so.
  2. The Fee is subject to VAT at the legal rate in force, where applicable.
  3. When customers' payments are processed through a payment service provider connected to F3ST, the Fee is withheld automatically on each payment. Otherwise the Fee is invoiced to the Organizer after each event closes, payable within 15 days.
  4. If payment is more than 30 days late, F3ST may suspend access to the service until it is settled, without prejudice to statutory late-payment interest.
  5. The Fee may be changed with 60 days' notice by email. The change does not apply to events already published on that date.

6. Availability and support

  1. F3ST is provided "as is". We do what we can to keep it available, but we do not guarantee any service level or the absence of interruptions, errors or lost connections, including those caused by third parties (hosting, invoicing software, payment provider, telecom operators).
  2. Scheduled maintenance is, whenever possible, done outside times when events are running, and announced in advance.
  3. Support is provided by email, on business days, at the address given in the Legal Notice.

7. Organizer's data

  1. Data entered or generated by the Organization (catalogue, events, sales, members, customers) belongs to it. F3ST uses it only to provide the service, meet legal obligations and, in aggregated and anonymous form, to improve the platform.
  2. The Organization may request an export of its data in machine-readable form during the contract and for 90 days after it ends. After that, data is deleted or anonymised, except what must be kept by law: sales, tabs and invoices are kept for 10 years.
  3. Sales are recorded in an append-only way. A product charged by mistake may be voided, and who voided it and when is recorded. F3ST does not alter or delete sales on request.

8. Data processing on behalf of the Organizer

For the personal data of event customers, the Organization is the controller and F3ST is the processor. Under Article 28 GDPR, F3ST undertakes to:

  1. process that data only to provide the service described in these terms and on the Organization's instructions, which are the features it uses;
  2. ensure that anyone with access to the data is bound by confidentiality;
  3. apply the security measures described in the Privacy Policy;
  4. use only the sub-processors listed in the Privacy Policy, all storing data in the European Union, giving the Organization 30 days' notice of changes, to which it may object and, in that case, terminate the contract;
  5. help the Organization respond to data subjects' requests and meet its security and breach-notification obligations, notifying it of any personal data breach without undue delay after becoming aware of it;
  6. delete or return the data at the end of the contract, as set out in section 7, unless the law requires it to be kept;
  7. make available the information needed to demonstrate compliance with these obligations.

The nature, purpose, categories of data and of data subjects are those described in the Privacy Policy. The duration is that of the contract.

9. Intellectual property

The software, design and F3ST brand belong to F3ST. The Organization receives only a non-exclusive, non-transferable right to use the platform for the duration of the contract. It may not copy, decompile or resell it, or use it to build a competing service. Suggestions for improvement may be used freely by us.

10. Liability

  1. F3ST is not liable for loss of profit, loss of revenue, loss of data, reputational harm, or any indirect or consequential damage, whatever its cause.
  2. F3ST is not liable for acts attributable to the Organizer, its members or its customers, nor for failures of third parties, including the invoicing software, the payment provider, hosting providers, telecom networks and the equipment used at events.
  3. F3ST is not liable for the Organizer's tax, licensing, consumer-protection or data-protection obligations, which are exclusively its own, nor for the content of invoices issued in its invoicing software account.
  4. In any event, F3ST's total liability to the Organization, for all events occurring in the same calendar year, shall not exceed the Fees actually paid by the Organization in the three months preceding the event giving rise to the claim.
  5. These limitations do not apply to damage caused by wilful misconduct or gross negligence, or in other cases where the law does not allow liability to be limited.
  6. The Organization shall hold F3ST harmless from third-party claims, including from its customers and from authorities, arising from how it uses the service or from its breach of these terms.

11. Suspension and termination

  1. Either party may terminate the contract at any time with 30 days' notice by email. Events already published may be completed.
  2. F3ST may suspend access immediately in case of serious breach, unlawful use, risk to the platform's security or late payment under section 5.
  3. Termination does not affect Fees due for events already held, nor sections 7, 8, 9, 10 and 13, which survive.

12. Changes to the terms

We may change these terms. Changes are announced by email 30 days in advance and apply from that date. If the Organization does not accept them, it may terminate the contract before that date at no cost.

13. Governing law and jurisdiction

These terms are governed by Portuguese law. Any dispute is submitted to the competent Portuguese courts.

14. Final provisions

If any clause is invalid, the others remain in force. Not enforcing a clause does not mean we waive it. These terms exist in Portuguese and in English; in case of doubt the Portuguese version prevails.