No, this won't help the user in illegal activities. Because refunds will be made from the unique address to which the client previously made payment for a request that didn't pass AML. That is, the client's funds that didn't pass AML remain at the same unique address created for the request's payment until the client specifies a return address and presses the send button. Thus, our service will in no way have any connection with funds subject to high AML levels, and this won't give the client the opportunity to anonymize their transaction in any way, because in the blockchain, it will look like they transferred from address A to address B, and then from address B back to address A or to address C, D, and so on.

To process refunds to the address from which the request payment was made is not a good idea because many people may make payments from exchanges, and in such cases, the refund would be automatically processed to the exchange address, potentially causing the client to lose their funds.