DSTV Cansallation

I Just cancelled my subscription with DSTV. I reconnected my compact subscription R563 on 13 Dec 2021 and downgrade to the family package.The agent did not explained to me that I will have the service until 30 Dec 2021. I was the under the impression that family package started emmediatly and until The 13th of January 2022. My DSTV was disconnected this morning when called the call centre they explained to my that because I paid in the 13th it was up until the 30 December 2021 but I paid in full. I also cancelled the service as every month's my subscription is a different amount. I AM NOT HAPPY AS COMPANIES DON'T HAVE THE COMMON DICENCY TO EXPLAIN THEIR SERVICES AND TO BE TRANSPARENT. THIS A **** AND ITS NOT GOING TO STOP HERE.