Misleading contracts

Last month I took a contract cellphone with Vodacom. The cellphone came with 2 card. I was promised that simcard will be loaded with minutes, sms and data every month. The only data I received is the one that I on the Sim card when I activated the phone. On Monday there was a lady who called to sell insurance for the cellphone. I told her that the data was not loaded on the simcard that she told is the main simcard that must always be on the phone. The lady said they will load it but until today I didn't receive data for this month. When I call their help line they don't give options for talking to the consultant. I can't pay contract for R318.88 per month but still have to buy my own airtime and data.