Answer:
(Probably) unknown
Explanation:
First off, you have to get rblx to agree to re-open a deleted, which I can imagine would take a herculean effort and most likely a stream of emails and phone calls. If they happen to archive deleted accounts, they may be able to recover it, but this is done by humans, so there is no definitive way to find out how long it would take a human to do this. If deleted accounts aren't archived, then you're outta luck because they won't be able to get it back.
3 months at the least my guy I'm just a helping hand
