Need advice to resolve an important issue
I would like to seek your advice regarding an issue that occurred after trading cryptocurrency.
A friend of mine sold USDT through P2P trading on Binance. It was a legitimate and mutually agreed upon transaction. The money received in exchange for the trade was transferred to a Pakistani bank account.
But later the person who sent the money approached the bank and claimed that the money was sent by mistake. Now the bank has put the money on hold and is saying that cryptocurrency is prohibited in Pakistan, hence this money is not legally acceptable.
Our situation is as follows:
1. All the trading processes on Binance were completely transparent and legitimate.
2. The bank has asked us to provide a "genuine source" to resolve this issue, but no clear guidance has been given.
3. The money cannot be withdrawn or used.
Can anyone provide guidance on:
1. What could be the solution to this problem?
2. What kind of evidence can be provided to the bank or legal entity?
3. If anyone has faced such a situation, how did they resolve it?