Mweb......don't go near them!

Months ago, I received SPAM from Mweb. I contacted them and told them to remove my email address from their spam database, or lose me as a customer. I told a female call centre agent that if I received any more spam, I would give 24hrs notice. In November of 2020, I once again received spam from Mweb, with NO opt-out option. I complained to Mweb again, because what essentially what was happening is that they sold me my monthly allocation of data, but then proceeded to use it themselves. On the 21st November 2020, my access to the internet was denied, without any prior warning. I assumed that they (Mweb) had therefore voluntarily and unilaterally suspended my service as per my threat of 24 hrs notice. Lo and behold, I start getting calls and emails and SMS's indicating that I owed them money. I have not used their services since 21st November 2020, and now they have handed me over?