# The Refund Action *Note*: The refund action code be found [here](https://github.com/Yakuhito/slot-machine/blob/master/rue-puzzles/actions/xchandles/refund.rue) ([Chialisp](https://github.com/Yakuhito/slot-machine/blob/master/puzzles/actions/xchandles/refund.clsp)). This action is very similar to the [CATalog refund action](https://docs.catalog.cat/technical-manual/catalog/the-refund-action), except that the pricing puzzle might either be a 'normal' or 'expiry auction' one. A precommit coin can be clawed back in the following cases: * The CAT maker puzzle hash has changed * The payment CAT amount is wrong * The pricing puzzle in used has changed * The handle has already been registered (and is still valid - i.e., has not expired) The action also creates a puzzle announcement that be asserted to ensure the dApp singleton is running the right action with the right parameters. For the refund action, the announcement prefix, `$` , is concatenated to the precommit coin's full puzzle hash. *Written by* [*yakuhito*](https://x.com/yakuhito) *from* [*FireAcademy.io*](https://fireacademy.io/) *on Feb 15th, 2025.* --- # 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.xchandles.com/techincal-manual/xchandles/the-refund-action.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.