Overbillled then bad SERVICE. Wow Cell C shines!!!

Around May last year I was offered an upgrade by Cell C with a subs fee of R399.00 including free minutes and data. Since my son who is in college needed a phone anyway, I accepted. However knowing how kids are, I insisted that a R60 call and data limit be activated on the account. In this way my fees would never exceed R460 including subs regardless of my son's usage of internet and/or voice calls. The consultant responsible for the upgrade then assured me that this was done. And to show this, from that point on my monthly bill averaged - R450. Come December last year however, my bill suddenly skyrocketed to over R2000.00. By the time I called customer care (care???) to enquire, towards the end of January, I was informed that the January bill had by then topped R3900. Of course I was dumbstruck. How did this happen when there was a data/call limit on the account and was informed that the limit was active but they could not explain why it was exceeded. Since then, in trying to resolve this issue, I have been tossed from pillar to post. I have been given the run around till my head was spinning from the dizziness. Rarely have I seen such atrocious service. Wow! Cell C! EPIC!