Cannot even fathom what is going on!!!!

I don't have an account with you. I purchased a phone September 19th and returned it September 24, your continuing to bill me and screwing around with my credit and I will be compensated for this. It has been ridiculous!!!!! 

The number you are billing is [edited for privacy-please do not post personal or unique information such as but not limited to full names, employee ID numbers, email addresses, phone numbers, account numbers, etc.]. I have an outstanding bill of 300.00 FOR NO REASON. I DID EVERYTHING I WAS ASKED AND MORE. I WILL be compensated for the credit score is now have do to your horrible service includes customer service reps. I am repulsed. Best buy in Salem New Hampshire is taking it up with you people but, I will be compensated or go through arbitration.
Michelle M.