I am one of the fake user counts of twitter. I was permanent banned in Nov 2020. But I was never able to delete my account. It says I do not have authorization to do that as I am banned. This is because they count me as user as part of their fraud. I bet there are 100s of 1000s like me.
There were thousands of us suspended the same day, right after Trump was suspended. Accounts still there with no way to get in and delete them.