If you have lost access to logging into your Armor Games account, then the support team can help. However it looks like that isn't quite the case as you are posting on the forums. If you feel your AG account is also compromised please let me know.
From what your post mentioned it looks your Helmet Heroes account needs help. As the game is an MMO, your best bet to get this investigated would be to contact the MMO's support staff. Helmet Heroes uses a forums reporting system to help work with the MMOs players.