I mistakenly sent BTC (Bitcoin) from Coinbase to BCD (Bitcoin Diamond) at my Atomic Wallet, can i get it back?

I put in a support ticket with Atomic Wallet and they provided me with the address where the funds are, but said they were not aware of a way to get the funds back. They directed me to ask the crypto community for advice.

Is it lost? Any direction would be greatly appreciated.

Thanks!