I think it's time that this question and the answer to it are pinned on the Meta and Beginners & Help sections of the forum for easy access. This question is becoming rampant again these days.
Can someone help me with this?
First, what is the reason for the account deletion? The negative tag? Well, the reason for the tag is not as indicting as you think, and may be removed later if you prove yourself worthy.
Second, have you thought of abandoning the account without looking back? No one will care about it, trust me.
Third, why not change the password to what you do not know? Perhaps it can help a little.
Unfortunately accounts cannot be deleted here instead you just have to forget about that, but the question is why do you want to delete your Bitcoin account, have you been using it illegally or are you hiding away from your crimes, the only best solution is to stop coming to the platform.
In this Bitcoin forum once your account is created, no going back, it is only when you are banned due to one reason or the other from functioning that is when you can be excluded because you will not be able to access the account for any purpose .