Yes, I get the hash but the problem is the site not sending money, they returned the amount to my account and sent fees to other address, an empty transaction to be clear, just fees.
This sounds like you sent from your Coinbase account to your
Coinbase receive address. Because this is a nonsense transaction, there is no reason for Coinbase to detect and optimize this as a null operation.
Really don't think so, I pay a lot of attenction when sending my coins and never had similar issues.
Even if a mistake can occur, it's not possible I did it 7-8 times.