Made a mistake in a P2P transaction

So I recently decided to sell USDT using P2P bank transfer. Since it was an international transaction, the buyer told me that the transaction would take hours and hence I should mark the order as paid once he gives me the required proof that he has paid. Once he showed me a screenshot, I marked it as paid and the coins were released. However, I realized now that I had given the incorrect bank account number. From what I have read, the money will be refunded to the buyer since they tried to send it to the wrong account number (possibility of another account existing with the incorrect number is quite low). I wanted to ask what my options are here. I have tried contacting the buyer on p2p chat but they aren’t replying. I tried to open an appeal but binance won’t let me since it has already been marked as paid. Please help. Thanks