Multichoice disconnection while premium is paid

I have been paying multi choice for over a year the same amount and this month they decided to switch off my account. They are demanding an amount of money they can’t themselves prove I’m owing. The WhatsApp line consultants close the call before resolving the issue. It’s sickening to be treated like this on a service I’m paying for and most of the information provided is contradicting other consultants explanations. I’m sick of multichoice and their *********** staff