30 days in arrears but payment was made

I called to cancel my contract in September 2015. I called in to the call center I was told that my last payment would be in October. I made my payment 27/10. When I went in to the store a month later to change to prepaid I was told that my account was handed in to the law office as I am 30 days in arrears. This is impossible. <br> I then went back to the waterfront office and no one could assist me. I called the call center again and spoke to Zizi the name given to me. Then spoke to Nandi was the team leader (ref ***) and while speaking to Nandi she disconnected me. I called back and spoke to Shihaam who was helpful. After telling her my story she requested that I speak to the manager on duty Horatio. He said he would help if I sent and email with all my information to [Email Removed] which I did (ref ***). I haven't heard back and it has been more than a week. I cannot use my phone and I cannot use it for emergencies. This is making me very angry. <br> <br> They also added an extra month to the bill and now expecting me to pay the amount before doing converting to prepaid.No one is helping me from call center and store this is no frustrating me. I just want this sorted out.