# Fizen Pay - [For customers](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-customers.md) - [For merchants](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants.md) - [Sign up](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/sign-up.md) - [Balances](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/balances.md) - [Balances in Smart Contract](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/balances/balances-in-smart-contract.md) - [Withdraw manually](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/balances/balances-in-smart-contract/withdraw-manually.md) - [Withdrawal history](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/balances/balances-in-smart-contract/withdrawal-history.md) - [Balances in your wallet](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/balances/balances-in-your-wallet.md) - [Invoices](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices.md) - [Invoice statuses](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices/invoice-statuses.md) - [Filter invoices](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices/filter-invoices.md) - [Invoice details page](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices/invoice-details-page.md) - [Create an invoice](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices/create-an-invoice.md) - [Cancel an invoice](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices/cancel-an-invoice.md) - [View payment details](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices/view-payment-details.md) - [Mark an invoice as resolved or refunded](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/invoices/mark-an-invoice-as-resolved-or-refunded.md) - [Point of Sale (POS)](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/point-of-sale-pos.md) - [Create a POS](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/point-of-sale-pos/create-a-pos.md) - [Help your customers pay using a POS ](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/point-of-sale-pos/help-your-customers-pay-using-a-pos.md) - [Edit/Disable/Delete a POS](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/point-of-sale-pos/edit-disable-delete-a-pos.md) - [Payments](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/payments.md) - [Payment Statuses](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/payments/payment-statuses.md) - [Filter payments](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/payments/filter-payments.md) - [Payment details page](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/payments/payment-details-page.md) - [Mark a payment as resolved](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/payments/mark-a-payment-as-resolved.md) - [Mark a payment as refunded](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/payments/mark-a-payment-as-refunded.md) - [Account settings](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/account-settings.md) - [Account information](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/account-settings/account-information.md) - [Two-step verification](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/account-settings/two-step-verification.md) - [Payment settings](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/account-settings/payment-settings.md) - [Auto-withdrawals](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/account-settings/auto-withdrawals.md) - [API keys và Webhook subscription](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/account-settings/api-keys-va-webhook-subscription.md) - [Close account](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/account-settings/close-account.md) - [Crypto settings](https://fizenio.gitbook.io/docs/help-center/fizen-pay/for-merchants/crypto-settings.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://fizenio.gitbook.io/docs/help-center/fizen-pay.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.