Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello, my Token has been already consumed, but I've never used it. I really don't wanna start over again. And all my friends don't have this problem.

I also didn't share my account. There' also only 2 locations I've used my account (My place and my gf's place). How can I get my account back? Did someone hack me and use my token?