Being Overcharged with unknown fees

I used to pay a monthly charge approximately R500 at most and it’s on a monthly basis . I decided not to subscribe for February and March because I was not around and since it’s on a monthly basis I can chose when I want the service . Now that I want to pay for April I am being given a bill almost double what I pay . I am calling now and I’m being informed of some extra streaming services that were activated on my account in a month I hadn’t even subscribed for ? Like this is ridiculous. How can extra charges double the fee ? I called them and the representative said “it's an option that you can choose to have extra days or not have them” . But how can it be an option yet I wasn’t asked whether I want it or not ? And only now after almost 4 years that’s when I’m being offered to be given a document which is said to be my contract . From day one when i registered multichoice had my email but never sent me that document . I’m really frustrated with this daylight *******. Treat those customers that are still using your services fairly