Cell C ******* service

Cell why are you *****ing people like this? Why am I listed as owing you over R3000 in my credit report for a contract that I fully paid and fully paid in 2016? I have tried to call your legal department and there is nobody available to assist. What ******* is this? Do you realize the impact this has on my life or do you not care? Can someone correct this mess, call me on ********** 033.