Make sure you have the token in your wallet (BSC or Polygon) and some native gas (BNB/MATIC) to send the transaction.
Enter your correct Esher blockchain account name. If wrong, your funds may not be recoverable.
If this is your first time, make sure to bind your wallet address to your Esher account using the binding page.
Only send from wallets you control. Transfers from centralized exchanges will not be credited.