Their customer service is typically very good. You may want to talk with tech support first to see what the problem has been. Then the billing issue can be properly address.
I'm not sure about reimbursement but you may want to call them and explain your situation. They may credit your account for a few months as a way of correcting your pay issue after they resolve your device issues.
I sure would ask....
I would go in & have the phone check because they may credit your account..
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