if you want your accounts ended, just logon to the website (or game) and cancel your subscription and/or remove your payment info.
$200 a month?? That's odd because the game only costs $15/month, $30/3 months, there is a 6months sub and a yearly subscription which is only $100/year.
GM have no control over the game (for what you are complaining about). If you have issues with account services, call customer service. If you come across issues with the game as you are playing, submit a bug report. it's that simple!