Ok guys thanks a lot. I have contacted them and I will tell you the results.

I was playing on my brothers account. I decided it was time to change the password. So I fill in the email and new password. It said that the email was unique. So I tried my other email. Again, it said it was unique and I never received an email saying the password was changed. I logged out after that and didn't play for a while. I tried to get on again with the old password but it didn't work. Then I tried the new one and that didn't work. I really feel bad for my little brother because he was first lieutenant and had his account for years. Please help me.