Doubt it's a single chargeback that did that, though it's probably what got there attention to your account. Probably something else (A bad infosec tool copy/modification to search for something like SS# patterns). Even from a security point of view I would see your email and add points for suspected fraud. What do you think and employer would think to if they saw an email like that (Minor drug reference @ omg.lol)? There is a lot of tools in infosec if they see it they would be against term of services (Some that you would not think of either)... Then further I would look for social media history too following, an incident on appeal (That's not just a recursive rejection) and see responses from you getting defensive as seen in the beginning of this thread. It's not professional behavior simply put.