Been mislead by dstv

On the 2nd February 2025,I called dstv and spoke a gentleman, whom we agreed that I will be paying R459, which will be including channels 161 and 202,that will include extra view and pvr services. I even transferred R459 from my account successfully. On the 7th February 2025, I was called by Ms Amahle telling me that they intending to give me a discount and I will be paying R299,as surprised as I was, I asked her about my package as it was including extraview and pvr, and she said if that included, I will be paying R399 and it will be 24 months price-lock. I was happy as I knew I did have bad experience with dstv. To my surprise on the 1st March 2025, R573 was debited from my account and no explanation was given, I wrote complaint to their customer service, to no joy. On the 1st April 2025 R519 was debited, as promised, I reversed this 2 amounts as I never had any agreement about it. If it was R459 or R399, I wouldn't have any problems as I knew that's was one of our agreement. Can you please help, maybe I don't understand. If our agreement is R459 and you called for discount, will a discount be more than our previous agreement. Please help as this happened more than 3 years back and its repeated again. I am doing this for my wife and kids. We can live with openview. But ethics must be prevailed by DSTV(Multichoice).