Horrific/Disappointing Service From DSTV/Multichoice

I am disgusted and disappointed with Multichoice. I have been a customer for about 12 years. THIS IS THE WORST CUSTOMER SERVICE IN THE WORLD!!

In December I won their Christmas Cracker competition and the prize that I won was 1 month free Premium package. I paid my account early in December on the 15th instead of the 31st ( I have a compact package) so my next payment date should be 31 January 2022 for R409.00. Around the 17-23rd I called in because my package was not automatically upgraded as the competition said it would and then an agent upgraded it because she saw that I won that competition for 1 months free Premium and told me that after 1 month it will automatically downgrade back to compact. After 1 week I noticed that I was billed R1186.00 instead of R409.00. I started calling Multichoice everyday then every few days. Each time I am told that it will be escalated as they can see I won the competition and I should not have been billed for it. I am also told each time that a manager will call me. Until today no manager has called me or sorted it out because my bill still shows R1186.00 instead of R409.00. Each time I am given a reference number and told it will be sorted out. Each time I am the one who has to call for feedback, they don't call me or send me any notification. Each time I have to explain everything over and over and over again. How is it that for 5 weeks no one can help me with a simple correction of the incorrect amount billed to me?? I have never witness such a thing before and I have had enough! They cannot even confirm that the system will automatically downgrade me back to compact after 1 month. The incompetency is truly a disgrace! Each time i call i give the reference numbers but it only gets escalated again...imagine what i am being put through for the past 5 weeks.