Last updated: 22 July 2026.
These terms are intended exclusively for professionals acting in the course of their business (a company identified by a SIREN number is required to use the Service). The provisions of the French Consumer Code reserved for consumers do not apply to them.
These terms govern access to and use of the Diamontis FX service (the "Service"), an e-invoicing platform that lets you receive, view, issue and archive invoices compliant with the French e-invoicing reform.
The Service is published by DIAMONTIS INFORMATIQUE (the "Publisher"), whose full details are set out on the legal notice page.
Diamontis FX acts as a Dematerialisation Operator (OD). The Service relies on a partner Registered Platform (PA) (SuperPDP) for the regulatory transport of invoices and directory connection. Diamontis FX is not, as of today, a Registered Platform within the meaning of the regulation. The client is informed of this and accepts it.
The Publisher may change its partner PA(s) (reversibility / multi-PA) without any degradation of the Service.
Access requires creating an account (name, e-mail, phone, password) and adding at least one company (SIREN). Contact details provided at sign-up are processed in accordance with our privacy policy.
The client guarantees the accuracy of the information provided and the legitimacy of its mandate to act on behalf of the declared company.
Account security (password, two-factor authentication) is the client's responsibility.
By activating the Service, the client grants the Publisher a mandate to carry out, on its behalf, dematerialisation operations (reception, issuance, e-reporting depending on the plan) via the PA. The scope of consent is time-stamped and kept as evidence.
Reception: free, unlimited and with no commitment. Receiving electronic invoices is a legal obligation; the Publisher covers it at no charge, regardless of the plan.
The Free plan is not limited to reception: it also lets you issue invoices and use OCR on a pay-as-you-go basis, funded by the prepaid wallet (see §5c). No paid plan is required to issue invoices occasionally.
The Pro and Business plans additionally include a monthly allowance of issued invoices and analysed OCR pages (see §5b), with reduced overage rates compared with the Free plan.
All prices are stated excluding tax (HT) and billed by Stripe.
Two billing periods are available: monthly, with no term commitment and cancellable at any time, or yearly, with a twelve (12) month commitment and two months free (ten months billed).
The Cabinet and Enterprise plans are quoted on request (sales contact).
Each plan defines, per company, a monthly quota of issued invoices and OCR-analysed pages, reset at each monthly cycle regardless of the billing period chosen (monthly or yearly):
Beyond the included allowance, each additional use is billed per unit, excluding tax, at a rate specific to each plan:
Reception of invoices is never affected by these quotas: it remains free and unlimited in all circumstances.
By default, overage is funded by a prepaid wallet, topped up by purchasing credit packs paid via a single Stripe payment (not a subscription): €5, €20 or €50, with a €5 minimum.
Each use beyond the included allowance debits the wallet at the unit rate defined in §5b for the relevant plan.
If the wallet balance is insufficient, the relevant usage (issuance or OCR) is blocked until a top-up, without ever resorting to an unconsented debit. Reception remains available without interruption.
The client may activate this option at any time: overage is then never blocked. The cumulative overage for the cycle is settled in a single Stripe debit, on the registered payment method, at the end of each monthly cycle.
Each plan includes a maximum number of seats (invited users): 2 for Free and Pro, 6 for Business, contractual for Cabinet / Custom.
Beyond this quota, inviting a new member is blocked: there is no add-on and no seat sold individually.
To increase the number of available seats, the client must upgrade to a higher plan.
Payment for paid plans is processed by Stripe. The Publisher does not store any card data.
A paid plan is activated only after payment is confirmed by Stripe (simply returning to the confirmation screen does not activate the plan).
If payment fails, the paid plan is not activated; free reception remains available.
Activating a paid plan or any pay-as-you-go service (issuance, OCR, prepaid wallet top-up) triggers firm and final billing of the corresponding amount. The client, acting as a professional, expressly acknowledges and accepts that, once the service is activated, the sums due are payable in full.
Sums paid for an activated service are under no circumstances refundable, in whole or in part, and the current period cannot give rise to any cancellation with refund or any pro-rata refund. This applies in particular to subscriptions (monthly or yearly), usage-based overage and prepaid wallet top-ups, which are definitively acquired by the Publisher.
The cancellation provided for in §7 only ends the future renewal of the subscription: it does not give rise to any refund of the period already paid, which remains due and billed until its term. As the client acts as a professional, no protective provision reserved for consumers stands in the way of this article.
Upgrade: possible at any time, effective immediately after payment.
Downgrade: possible at any time for a monthly plan; for a yearly plan, the downgrade only takes effect at the end of the current twelve-month period.
Automatic renewal: the subscription renews at each due date (monthly or yearly) via a Stripe debit on the registered payment method.
Reminders are sent 14, 7, 3 and 1 day(s) before the due date to flag the upcoming renewal and, where relevant, to check the payment method.
Renewal failure: absent payment at the due date, the account is immediately suspended for paid features (issuance, OCR, automations) - reception remains active and free, without interruption. A banner and a payment link are displayed until the amounts due are settled, which lifts the suspension without any data loss.
As these terms are intended exclusively for professionals, the provisions of the French Consumer Code on the renewal of contracts with tacit renewal (article L. 215-1, known as the "Chatel law") do not apply. The J-14 to J-1 reminders above nonetheless constitute a systematic commercial reminder of the upcoming due date.
The Service is reserved for professionals acting in the course of their business (a company identified by a SIREN number is required for use). The right of withdrawal provided for by the French Consumer Code (article L. 221-18) benefits consumers only and does not apply to these terms.
Consequently, subscribing to a paid plan or purchasing a pay-as-you-go service does not give rise to any withdrawal period or to any refund on that basis, in accordance with §6b.
The Publisher uses reasonable means to ensure the Service's availability; it cannot be held liable for unavailability attributable to the PA, the hosting provider or external causes.
The Service depends on the PA for regulatory transport; the timelines and statuses reported by the PA are binding.
No quantified service level agreement (SLA) is currently contractually guaranteed for the Free, Pro and Business plans. A detailed SLA (availability rate, response times, possible penalties) may be formalised for the Cabinet and Enterprise plans under a dedicated contract. Otherwise, the Publisher's liability is limited under applicable law.
Data processing is described in detail in our privacy policy.
For invoice data, the Publisher acts as a processor on behalf of the client; for account data, as a controller.
Retention: invoices are archived for 10 years (tax obligation), which takes precedence over erasure requests. Hosting within the European Union.
Any data subject has the right to lodge a complaint with the French data protection authority (CNIL - www.cnil.fr) if they consider that the processing of their data constitutes a breach of the GDPR.
The Service allows an invoice recipient (a person receiving an invoice issued by a client of the Publisher through the Service) to create a personal space (the "End-Client Portal") to view, in a single aggregated view, all invoices sent to them by their various suppliers using the platform. Opening this space always follows the actual issuance of a document; it never results from a supplier simply adding a contact.
Cross-supplier non-leakage commitment: the Publisher guarantees that no supplier using the Service can, by any means whatsoever (interface, export, observable behaviour), infer that one of its clients also does business with another supplier on the platform. The link between invoices received from distinct issuers is visible only to the end client themselves, from their own space; no data crossing several suppliers for the same end client is ever exposed to any supplier. This is both a contractual commitment and one of the founding principles of this space's technical design.
The end client may, at any time from their space, change their interface language, revoke a supplier's access (invoices then continue to be sent to them normally by e-mail, outside the Service) and unsubscribe entirely, which immediately ends all notifications and any active session.
Access to this space requires no password: it relies on single-use sign-in links sent by e-mail to the address invoices were sent to. Processing of the end client's data is described in our privacy policy and in the processing register.
At any time, the client may export their data (invoices in their original format, FEC accounting file, history) from their account.
Upon termination, the precise format, timeframe and free-of-charge terms of a full data export remain to be formalised contractually, in particular for the Cabinet and Enterprise plans; they apply in any case within the statutory retention period for invoices (10 years), which takes precedence.
The Service, its brand and its components remain the property of the Publisher. The client's data and documents remain the property of the client.
The Publisher may amend these terms and the pricing grid.
Any substantial change (pricing, quotas, essential features) will be notified to the client by e-mail at least thirty (30) days before it takes effect. A client who does not accept the change may cancel their subscription, free of charge and without penalty, before the effective date; otherwise, continued use of the Service after that date constitutes acceptance of the new terms.
Consumer mediation (articles L. 611-1 et seq. of the French Consumer Code) is reserved for disputes involving a consumer. As the Service is intended exclusively for professionals, no consumer mediator is designated. The parties shall endeavour to resolve any dispute amicably before any legal action.
These terms and conditions are governed by French law. Absent an amicable resolution, any dispute regarding their validity, interpretation or performance falls within the exclusive jurisdiction of the courts of Metz (jurisdiction of the Publisher's registered office), including in the event of multiple defendants or third-party proceedings.