# My credit card's been declined A credit card may be declined for various reasons. HackerHouse is usually not informed of the specific reason. ## Most common problems Make sure that you have entered your card number and billing address correctly, that your account is adequately funded and that your card has not expired. ## Contact your bank or card issuer. If you receive an error message when trying to make a payment, we advise you to contact your bank or the institution that provided you with your credit card for more information. Tell them the amount of the debit and the time of the transaction so that they can validate it. If your bank or card issuer is not able to help you, you can try using **another payment method.** --- # 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://coliving.hackerhouse.paris/book-and-move-in/payment/my-credit-cards-been-declined.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.