Can not allocate my payments I made 2 months ago

I am a 3month old RCS member and in the first month I purchased something small to test it, and made my first payment the next month and again the month after that. Since then I have been getting sms's/email/ etc stating that I need to pay my account. BUT I HAVE. I also sent through POP multiple times with the details the require of me to multiple people and STILL no help. I am going to settle my account and CANCEL this account! Thank goodness I first tested this before spending the amount that I wanted to.