You misunderstood me, or perhaps I didn't explain myself clearly. Let me try to explain again. What I meant is that the funds are returned from the deposit address to which the payment was made, not from any other address. Therefore, this is not a problem because, for the refund, the client will need to specify the required address for the refund and confirm it by clicking the "Submit" button to process the refund. Thus, such an error will not occur. I apologize if I misled you.
OK, that makes sense, you just didn't write precisely earlier.
For such a scenario, you should have a mandatory field for the refund address, as well as a mandatory download letter of guarantee with all order information. Accidentally closing the browser complicates things quite a bit. For example where to enter my order code after reopening your site?