# Recommendations Payments should be verified and references returned should be cross-checked that it doesn't already exist in your database before giving value to your customers when we notify you via your callback URL. References should be saved in your database upon initiating a transaction and verify its status before giving value to your customers. Request timeouts should be set to a minimum of 30 seconds. Regenerate your API keys if you feel that they may have been compromised. --- # 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://docs.pis.ng/v1.0/recommendations.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.