yeah, just go to the billing support query, then log in (with a throwaway account) then just say the username of the account, tell them to double check everything, and you were trying to activate membership on it after you quit or something, and that for no reason it got locked. and if they give you the bullshit of "gtfo, this is member query only", then try again on a different account, but these are examples of success.
-if they say anything to do with, adjustment, such as "I ajusted the (example:creation details) so you can try again".
-anything to do with trying again. "try again"
-anything saying that "you should not need (example:creation details) to recover this account, I'll look into it".
and after that if you got most of the info, just wait 3 days, there is a 90% chance that you will get success, providing that you got enough information.
I recovered my locked account over 50 times altogether, and if it got denied more than 2 times, I would send in a message saying blah and blah, and they usually responded with one of those examples said above, only a few times did they tell me to gtfo tho.