Transactions which are confirmed on a blockchain explorer are irreversible. There is no authority that can help you return coins after a transaction has been confirmed even if you did not authorize the transaction yourself.
Each transaction must be signed using your private keys, which are stored in your Trezor device. If you did not authorize the transaction, there are two likely scenarios:
If you think that your wallet backup or device might have been compromised, we suggest moving all remaining funds to a newly created wallet backup.
Check our guide on how to do it: Move crypto to a wallet with a new wallet backup