False Advertising/misinformation

On the 23rd September 2019, a lady by the name of Nobuhle sold me a package for R399 p/m and apparently this pack has what they call Spent Limit which I was never told of. They moved me from ADSL to this LTE at that rate and was rather told everything works the same as ADSL, i.e. top ups etc are the same. To my surprise after topping up my data for 3 months, I'm sitting on a R11... thousands bill whilst I've spending my money on credit card (double dipping). Today Phenius (customer service agent) tells me there's nothing he can do but my package is structured in a way that I borrow money from Telkom !!! It doesn't make sense at all that I use my credit card details to top up but I'm borrowing from Telkom!!! ****s operate like that, marketing misinformation and then you can't even get out of the so called contract. All this is not acceptable and Nobuhle was representing Telkom whom should be liable, not me, being punished for someones incompetence or trying to push her sales numbers and not disclosing all necessary information that could have helped me to make the right buy/decision.