Open the secure account: Sign in to your own customer profile at augment.eco/app and choose Payment methods. Follow the options actually shown to add or replace a saved method. Menu labels may be translated. For a Finnish account, use the verified payment-method page.
Pay an existing invoice: Open the relevant order and its Invoices section, or the verified payment link for that invoice. Use the methods offered there. A saved recurring payment method and the method available for a single invoice can differ.
Bank transfer or another method: If the verified invoice offers bank transfer, follow its account details and payment reference. Do not assume every country, new order or invoice supports the same card brands, SEPA option or IBAN-entry screen. Ask support if the desired method is not offered.
Lost or expired card: Use the secure payment-method flow to add the replacement where supported. Check any open invoice separately. Updating a card is not proof that all previous payments have been collected or that a restriction has cleared.
Keep credentials private: Do not send full card numbers, CVV, passwords, banking credentials or one-time codes in chat. Payment details belong only in the official secure flow.
If it does not work: Contact support with the exact error and steps already tried. The team can review a failed control or account issue. A payment-method change does not change the contract holder, transfer ownership, cancel a plan or move an invoice due date.