client issues

so i have MoP, Cata, and i just downloaded the new wrath of the lich king realm with updated character models, so after the download was complete i played it a little, then i went to go to the mists of pandaria client and play on my toons there, but when i attampted to log in it told me i needed a battle. net account to play, i emptied cache and still the ame error, i also checked the realmslist and it all says warmane.com, can i get some help please?

Are you logging in with your account name?

yes, with my account name and password, its all the same as i can log in to the website but not the game