# Finance Checker ## In General This tab will show you all unresolved payment issues on your device. ## Overview of Controls ### **Invalid Credit Card** The credit card entered by your guest has been marked as invalid. ### **Empty Bill** Bookings without items or payments on account. ### Unbalanced Past Bill Unpaid account for past reservations. ### Unbalanced Future Bill Unpaid bill for accommodation for future bookings with non refundable (advance payment), reservations with standard rate are not displayed. --- # 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://help.siestaextranet.com/en/aplikace/untitled/kontrola-plateb.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.