If you send something to a different type of wallet or wrong address, it's gone. (99.9999% sure)
i did pay a shitload in gas fees trying to convert ETH to TRUEBIT
Basically I transferred from CB Pro to CB just using their platform, then transferred it to CB Wallet with a crypto address -- all that worked fine. I had a brain fart and sent it back to the same crypto address (CB) that it came from into my CB wallet app: 0xb5d85cbf7cb3ee0d56b3bb207d5fc4b82f43f511
I'm hoping its a static CoinBase corporate wallet address or something since it looks like its used a ton: Address 0xb5d85cbf7cb3ee0d56b3bb207d5fc4b82f43f511 | Etherscan and maybe they can return the funds, but its probably gone