DSTV Pricelock /accounts poor service

I have been a DSTV client for many years now…the last 6 months however has been far from pleasant. I am a DSTV PRICELOCK client that was on debit order. And seeing that my bill is always the same there should be no problem, right?? Since October 2019 my bill was constantly changed and I was constantly overcharged. I spent countless hours on the phone with DSTV and was always promised that my queries would be “escalated”, I was never phoned back and not once did I receive any money as credit. And every month (including the last month) my bill is incorrect. Surely this is not possible. How many people does it require Multichoice to solve a problem??