Cell C is messing me around

I have been trying to fix this problem for almost 2 months and still you guys have not sorted it out. I took out a R99 2 Gig data contract at the Golden Acre Cell C store on October 2nd. Up activation of the data on my sim card, the 3 Gigs Nite Time data that I was supposed to have received was never loaded. This caused my Anytime Data to deplete before it should have and subsequently ran up a bill of R1661 that I have had to pay, despite not having caused the problem and despite not having budgeted for the amount. So here's the thing - I will be stopping your debit order from going off this month as my credit record is already ruined by your incompetence. Instead of apologizing, give me my money back. I have taken this case up with Icasa by the way. Stop messing your customers around and do your jobs!