08-09-2013 17:53 - edited 08-09-2013 17:53
For clarifications regarding unknown, unauthorized or unrecognized charges, you may need to contact customer support.
Just open the link pasted below to see the instructions on how to get in touch with customer service -
they did they tell you the reason why you were blocked? afaik, one of the requirements for refunds is the credits/subscriptions should have not been used.