BAD SERVICE

I received many calls from the call center since May 2014 claiming that I am overdue with my Incredible Connetion Card account. This account was fully paid up in March 2014. I have send them the proof of payments every time they phone me, and the matter is still not solved. I am now listed on ITC with more 150 days in areas. I have send many mails to Tony Zitha via Jaqueline Kganyago his Branch Administrator and spend many hour on the phone with him. I have try to get to one of the directors Louis in the beginning of January 2015 and the call was taken by Cherly Naidoo, who promised to escalate the mater. I did phone Tony today and still nothing was done. What is my options now. If you look at the complaints they have here, something is difinitely wrong in their admin.