So how long you are going to wait and keep these funds frozen? Forever?
Why dont you act like banks and any other financial institution? If they do not want to process transfer for whatever reason that might be they will simply refund. It does not matter that the money have already been in their bank acc. Nothing will happen if they refund money to same account where it came from. This is just some crap you saying to keep OP funds.
We cannot exchange or refund funds obtained through criminal means, as this may be interpreted as complicity in a crime. In order to continue the exchange or return the coins, we must make sure that the funds were received in an honest way