If you found the transaction has not been packaged for a long time, you can go to Etherscan (https://etherscan.io/ ) to check the status of the transfer. If Etherscan shows that the transaction was successful but you haven’t received it in the imToken APP, please contact us via email at support@token.im.

The token cannot be withdrawn before the transaction is completed. .If you've confirmed the previous transaction failed to package from Etherscan, you can send another transaction with 0 ETH to cover the previous transaction.