Unable to purchase Warbank

I Have tried purchasing the warbank on 3 different characters. a level 80 a level 70 and a level 31and none of them can purchase it. I have completed the quest line on my level 80 character so idk what to do from thereI have disabled addons, logged out and logged back in, transferring money, using different banks but none of it work any help would be appreciated.

This forum is exclusively dedicated to collecting feedback on the Battle.net launcher app!

Maybe try the WoW forums instead?