A few days ago I bought bitcoins (on btcdirect.eu) and sent them accidentally to my BCH-wallet on Coinbase (!). I contacted both btcdirect and Coinbase, unfortunately I received the same answer twice: they can't do anything about it.

The exact answer of Coinbase was: "Unfortunately, digital currency transactions using most blockchains are irreversible, meaning once they are sent there is no way to reclaim funds. If you sent digital currency from your Coinbase account to an email address by accident, your funds will be returned to you in 30 days if the funds remain unclaimed. If the email address has not already been claimed, you could do so to ensure the funds are returned to you."

Does someone know what I can do in this situation? It's a big amount of money for me and I really can't lose it...

Thank you in advance!