Unfair treatment

Consultant signed me up on 12 month contract stating my membership would be R399 with the discounts I would be getting with sanlam reality and having a qualifying product with sanlam as well. After paying half of my activation in December and the remaining balance in January I was debited with my first premium in February of R498. I explained to the gentleman what I could afford before signing up and the Debi check I received was also for R399. I went back to the Consultant and made him aware of this and he told me he had made a mistake and the nest option would be to change over to the 24t month contract so I could pay the R399 premium. When I received the Debi check it still didn't reflect as R399 but as R478 and I declined it and told him I have decided to leave it on the 12 months and just cancel instead it's a few weeks later and I called the call centre to hive notice and now I'm being told my contract is still on 24 months and its never been change after I signed a 12 month contract a few weeks ago already. The service I have been receiving is pathetic, I'm honestly disgusted by how I'm being treated as a customer. Their staff at the call centre can't even call you back after trying to lay a compliant half through explaining myself the call went straight to a survey. I don't want to go back to the gym and train there because of the service I received.