Over charging

I have a problem with DStv charging me for days I was not connected. I disconnected my DStv last year due to being unemployed and unable to pay. This was done before the end of the month around the 25th I've found that whenever I have had to disconnect and reconnect again they charge me for at least two weeks or a week after I've disconnected This time I connected for a minimal package to be able to see the COVID related news and updates, I paid the they said I needed to pay to get reconnected. All of a sudden this month end they want me to pay 3 times more than my subscription due to sudden fees they said accumulated before I disconnected. And the dates they mentioned are inacurate I feel this is ridiculous, given that we I am at home with no income due to COVID and the fact that their balance amount on their online system is always more than what is due by 3 or 4 times the package I chose I have to call them or inbox them Everytime I need to pay R99 because it displays R400 plus on the account. And they are still harassing me to pay this money or this is now a debt to me. Plz assist with this