Poor service

I'm a WebAfrica customer. I have fibre internet at home and I want to upgrade to a faster service. The only way to talk to WebAfrica to do this is via WhatsApp so far I've chatted with Lehlogonolo, Rabia and Faiza all different agents on WhatsApp. Each agent asks a bunch of questions, then transfers me to another agent. At which point we start again from scratch with the same questions. Not one of these three agents were able to offer any help and I have experienced this issue with there live chat on many occasions previoulsy.

All I need is to cancel my service, why is this so hard?