Is all my $$$ really gone?

This is embarrassing 🙈 but here we go. I sent all of my Chain link from Nexo to Kraken but here’s the problem, instead of using the Eth network their app allowed me to use Poly. Yes, I fell into this trap 🫣I sent it to the wallet I was given from Kraken and transaction was successful. Is there really any way to get my Link back?