Suspicious activity (hacked account)

I have emailed to advisor. They have given me zero new information.

I have already changed my passwords to EA account, email and IOS gamecenter, I have cleared my browser and cookies story. I’ve made it two times. I have unlinked and linked my EA account.  It’s not effective.

Today hacker kicked me off my account twice. He has joined twice a day 2 random guilds. 

I know that there is a certain glitch in game -  when entering in a guest account mode a player can be moved to random existing account. I’m pretty sure that someone has linked to my account and maybe he has linked it to google play account or something else. But this hacker still easily can enter my account. It seems to be one person cause his actions are the same each time, it’s a pattern.

Can a receive a certain help and not another link to a helpless “how to” topic?