New package costing more than expected, Telkom unwilling to send contract proof

I was contacted by Telkom to upgrade my 4MBps line to an uncapped one. I asked consultant how much more and he mention an amount that was little bit more. When I got my first bill and the following ones, they were all much more. This was on 23rd of March apparently. I have spoken to a few customer care persons who each passed the buck. Billing tells me that sales must send me the recording of this upgrade call, and sales tell me billing must do it. This was told to me, after initially speaking to customer care the previous month, who also ****ing promised to find out what was promised to me without avail! My last calls where to among some, Sibusiso in Billing on 18/8 at 14h12, and Manniqi in sales on 18/8 at 14h17 with the initial package order no: ********** 26a. Manniqi promised me, after I told her I was being transferred from one dept to another, her superviser for the shift promised to get to the bottom of it!!!! I am still waiting for ANYBODY to call me bac****! Utterly useless service. Manniqi could not give me a reference number for some reason. I want the recording for the day the consultant upgraded my line to uncapped! Then I want a consultant with brains to call me and explain to me each bill, why the hell it is so high now! Generally consultants in billing cannot explain to customers in plain manners what is going on, on the customers relevant invoice, since the invoice from which the consultant reads from is always different from the once sent to the customer! I want FEEDBACK AND CREDIT! POOR POOR SERVICE!!! NIEMAND BEL ***KEN TERUG NIE!!