Your withdrawal request might fail due to the following reasons: 1. You entered the wrong address, when entering the address be sure that you have entered the right one for the right network, for example entering the ERC20 address for TRC20 withdrawal could cause the failure in withdrawals. In this case, you will not be able to submit the withdrawal for processing.
Your withdrawal requests could also fail due to withdrawal suspension of the asset or the account:
1- Technical maintenance: This could be an exchange-wide restriction for that asset or just particular to you as a user. For example, BictoryEX must suspend withdrawals temporarily when we are on maintenance mode (ie: working on something technical related to that asset). In this case, you have to wait for the suspension to be lifted for the asset before you can make a withdrawal request.
2. Password/2FA resets: Withdrawals can also be suspended for a user account if they recently changed their password or 2FA authentications. Changing your password or 2FA suspends withdrawal from the account for at least 24 hours.