To make a Stripe refund you should log into your Stripe account.
You'll see a list of your payments by clicking on the Payment button on the left top.
The next step is to hover over the button on the right with three dots and click on the arrow button.
You'll see the pop-up where you can select a reason or some details about this refund. Choose the one that best suits your situation.
Confirm on the pop-up that you definitely want to Refund the Payment or press Cancel.
This will delete related payment in your Income Page in Pocket PA.
After that, the payment status of the specific appointment or sale will be updated from Paid to Unpaid.