Nostalrius Begins - Quality wow vanilla realm (1.12)

I changed my password using the .acc password oldpassword newpassword newpassword command and then was not able to log in afterwards with the new or old password. Obviously I've continued trying since this happened last night and now it says the account is banned. What did i do ?

It sometimes says that when you try and fail to log in too many times. More than likely you forgot your password that you changed or entered it incorrectly.

If you wait about 15-30 minutes it should allow you to log in again. If not the go to the support forum and message a mod there.