Binding of email or Phone number is necessary without any of these you can't even make the account of Binance then why are they asking you to bind any of them? I think you have to bind only one of these two like phone numbers and they are saying you have to add email as well. If you already did it. Then I will say uninstall the app and then install it again although it's not the problem but just in case.

Or see if your app needs an update. I am a old user of Binance and till now I did not saw any problem and if you are seeing still then try to contact there live support they will definitely going to solve your problem soon. Is this your first time withdrawing funds from Binance as if it is then its a normal thing. No need to panic here they are not going to seize your funds.