Lost my ethereum when transferring to coinbase.

Hello,

So on December 7 2020 I transferred everything out of my binance account because they said they weren’t supporting US users anymore, and I traded all my crypto coins to ethereum to transfer to coinbase, but I guess I didn’t do it correctly because it never transferred, I emailed coinbase and they said it’s because

“It appears this transaction was performed using Binance's BEP2/BEP20 chain.

Coinbase does not support BEP2/BEP20 and we do not have access to these funds.”

So basically nor binance or coinbase will help me get it back.

Is there any suggestions or any advice on what to do next?

Thank you.