Being punished for Dstv's system failure

In May 2018 we downgraded from a premium package to compac plus because the premium was just too high, we could no longer afford it. Then in September 2018 Multichoice sent me an sms and informed me of a special thy have whixh entails the following: a special running on their Premium package for only R699 from 1-31 Oct. Our payment for compact plus is always due on the 30th of each and every month, we always pay on the 25th of every month hence we were up to date or he month of September. They upgraded me on the 29th of September and told me to pay R200 for those extra 2 days in Sep. Then the third week in Oct i received an sms that i owe R360. I contacted them and they told me they can see i paid the R200 however their system did not upgrade me to the special they were running but to the normal premium you pay of R899 hence their system was showing that i was in arrears. Which is not the case because i did not sign up for R899. They explained to me they can see i signed up for the R699 special but the system has not been updated so i had to pay another R120 which i did on the 20th of Oct. Then on the 24th of Oct days later my dstv was cut agian. I called and i asked to speak to a manager. I spoke which a guy name Kgomotoso an he told me its a system error which in their capacity could not rectify or bypass and that i had to pay another R175 so that when the system was finally fixed they would credit me the money i've paud. I refused to pay anymore money for their system failure. To this day their system did not upgrade me to the Oct special and today they disconnected me again! As if im the one thats to blame for their incompetence. How does it take you an entire month to downgrade me to the correct package? Now i reveived an sms that i have to pay a whopping R1045! How is that even possible? I want this matter esalated immediately and i want the money i've paid credited to my account. My account number is ********** 7.