You might experience
withdrawal hold or withdraw is in under-review that is why you are not receiving any email yet when withdrawing.
Are you KYC verified?
Did you reset your account recently?
Did you request any security change from your account?
If you did change something related to security this might be the reason why you are not receiving an email when withdrawing.
According to the support area, you need to send this issue from here
https://cs.bitfinex.com/ and they will review your account and fix the issue.