Once you've requested additional fees from a guest, you're able to go back and edit or cancel your request. You can edit or cancel your request immediately after sending it, or at any point before the guest accepts your request.

You can find your money request at the top of the booking details page. 

From there, click Edit to modify your request. This will allow you to modify the requested fees and the explanation, as well as upload additional evidence.

To cancel the request, click on the Cancel request button. A pop-up window will open asking you to confirm your decision:

Click on Cancel request again, and the request will be cancelled.