Scott wrote on game forum World of Tanks
Same username as in WoWs World of Tanks, World of Warships and World of Warplanes use a unified account system. Meaning that When you setup an account for one of these 3 games from Wargaming.Net, that user name and password is used for all 3 of these games. This is an issue that Gamekit has to fix on their end. I would suggest you submit a ticket with Gamekit staff to get this issue resolved.