I ened a mod please, as fast as possible. Shika.

Ok, basically, someone else is on my main account, I don't know who. Password has been changed, they're not replying. They've pretended to my friends to be me, and the weird thing is, instead of clearing out all the items etc, they've just gone and run black rat dungeon with a group of my mates. I don't know what's going on, but I need to recover the account. My main problem is that I don't think the email I created the account with exists anymore, so I need a mod please, on shika, as soon as possible (please!).