Did you ask the support team? I mean, if you can withdraw without verifying your identity, or asking them that you have a friend who has more than one account, what will happen to the balance?
If you do not find any way, then you must inform the other party of the remaining balance and all the necessary details, and then some may try to help you, especially if the amount is large.
In general, don't you have any friends? Brothers? neighbors? Or anyone you trust to help you?
In addition to what has been said above, there's also a risk for you. What do you think would happen after someone helps you verify the account with their identity, lets you use it for some time, and then contacts the exchange and claims that their accounts have been compromised? it doesn't matter if you have access to the email and 2FA, he will be able to access the account again since he can always go through KYC again.
He does not want to use the accounts, but rather withdraw the balance.