Auto Page ia a *******

I had a Cell C 2 Gig Laptop contract which according to my understanding was capped to 2 gigs ,which was clearly indicated by the fact that every time i reached my limit I would get a massage notification saying i need to recharge my account or contact the contact center . It was miraculous how on the month I actually settles my 2 year contract my service automatically changed to being an open line ...What is shocking to me is that auto page is charging me R8934.73 for 13 Gigs worth of data how pathetic is that like really ,especially because i have never even once contacted their call center to open my line ,I would like to know who authorized that change . when I ask the consultant she tells me it has always been that way but that is not true because it always used to disconnect my service when it reached the 2 gigs. But i didn't sing for this and i didn't approve of what they are saying and i am not willing to pay such a large amount of money for 13 gigs because its ridiculous. I paid off the contract and request auto page to look into this because I am not happy at all especially because this all happened on my last month of the contract with them.