What do you mean? You shared an account with someone and they took it? If that's what it is most likely they won't help you unless you can tell a big lie and you have full info for it... Then maybe they might be able to help.. (My brother had an account that was stolen and now it's like a good 2nd rb archer and they never replied to him)
If you share an account and after the other person have logged in, you log in and don't report that you found your account "hacked", you will not get help from TQ.
I have tested it