Frustration in trying to cancel my service

I desperately want to cancel my service with Webafrica, but it is impossible to get hold of anyone to assist in doing so. On the Customer portal you HAVE to confirm your debit order details before you can do anything. I have tried calling their support/sales number, ask to be put through to cancellations department, but then been put on hold for over 15mins every time. I got through to the Sales department, and when I mentioned that I want to cancel my service, the lady promptly put the phone down on me. The customer service is SHOCKING to say the least. Dealing with their WhatsApp chatbot is a disaster!! This is my main reason for wanting to cancel - the frustration in trying to get assistance with anything. My last resort was to post this review in the hope that someone would actually contact me and assist in cancelling my service.