MTN IS RIPPING ME OFF I WANT MY MONEY BACK

October 2015 was supposed to be the end of my contract with MTN for my two phones, was told to visit their branch in BROOKLYN PTA to do the migration from contract to prepaid.<br> On the 26 October i visited the branch to apply for migration and i was helped by a lady and she gave me the References ***4 and ***4,.<br> On the 07th of November 2015 the last payment went off from bank account which was supposed to be the last one. In the middle of November MTN sent me a billing statement that i am owing them i then rush to their store again, the lady who had attitude told me i have to call their customer care number because the company has backlog and there is nothing she could do to help, she also gave me another *** she told me she has done the migration.<br> When i got home i called the customer care the guy who was helping me told me according to the MTN system the is nothing showing that asked for migration in all there is no history of the References above, he told me to go back to the branch and ask them to sort out the mess.<br> The following day i went back to the store i asked for the manager or supervisor, he gave me another ***, my bank was debited gain, pls help