Conquest of the Horde

My Introduction was accepted a few weeks ago, but when I go to log in, WoW won't let me. It continually says that the account is invalid. I've attempted making a new server account, but that doesn't work either. I'm completely confused about what I should do to fix this.

Well, have you changed your Data file to go to the CotH Server?

yes, i made sure to do that first thing.

I don't see an account for you in the server database. Please go to the Account Management and register on there.