billing after cancellation

Good day<br> <br> please assist i've been logging calls with Cell C ***** department since April 2014 regarding an ugrade which was made on my contract which was supposed to have been closed september 2013.<br> <br> upon contacting cell c (more than 5 times) i had to log a call each time and at one stage i was told that my problem has been resolved yet my account is still being debited and i've failed to obtain a cell phone contract recently as Cell C has taken me to the credits bereau as i've managed to reverse most of the funds debited in my account.<br> <br> please assist in resolving this issue as i'm not keen to do the unthinkeable.<br> <br> regards