Additional charges

I signed up for a 14 days trial with Show Max. We tried to watch a movie and it was buffering. We cancelled the trial and didn't bother signing up again. In November we when I paid my DSTV compact I was charged For show max. I called the customer care and she couldn't give me an explanation about the charges. I paid my December subscription and on the 7th my services were cut off, I called and I was told to pay an extra R175 which includes a reconnection fee and show max subscription. I explained that I never used Show Max and I cancelled it before the 14 days free trial. The consultant couldn't give me any further explanation about these extra charges. This is ridiculous and I need a detailed statement of my account.