# Transaction Codes Browpay handles its escrow delivery through a transaction code/payment token driven mechanism. \ \ Once your customer makes payment, we send them a payment token via email and SMS as their verification key after a successful charge and credit of the seller's holding balance. Primarily, a payment cannot be reversed after token generation, see your dashboard to resend the receipt to your customer and access full payment information. We are working hard to update our API with chargeback and refund features. You can only currently access these features directly from your dashboard. --- # 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://developer.browpay.com/payments/transaction-codes.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.