A nightmare of a company

I cancelled my ADSL package on the 1st of July 2020. I was informed that it would take 2 calender months and would only be disconnected at the end of July. Not good service, but okay. I requested mweb to release my line so that I can get another service provider. They agreed, but did not do it. Again and again, I requested them to do it. It is now almost the end of September and they have still not released my line. My complaints fall on deaf hears. The agents at the call centre conveniently cut the calls. I have no way to get any help and I am stuck without internet. I don't know what has happened to this once good company