Telkom Disappearing Data

For the past 2 years I have had a Telkom data contract, with 5Gigs of anytime data. The 5gigs used to comfortably last thru the month, with the odd occasion of running out around the 25th. I was then contacted and "upgraded" to 10gigs of anytime data, since as the consultant said: " I was a valued customer". Amazingly to our shock & horror, the 10gigs was depleted in the 1st 2days of this month! I immediately called & logged a complaint with telkom, informing them that both my data manager app & router app are not showing a 10 gig usage at all so there's definitely an error. I then tal**** out the history on my 2 devices, which further confirmed a usage of approximately 2.4gigs. However as per true telkom style, no one has contacted me thus far, despite the usual promise of a 48hr turn around time. I also had a look on the telkom forum, only to find numerous such complaints of disappearing data. I would like to cancel this contract since it has just only begun. Im sure the CPA has provision for such situations. Infact telkom should be given a ultimatum to " fix" their poor customer service or rather just shut down altogether.