Webafrica support is useless

I need to cancel my subsciption due to the poor service from Webafrica. The link in the customer zone says to use the Whatsapp line to cancel. Using the whatsapp line has now taken me 11 days and still I am unable to cancel my subscription. They told me there is a clawback fee because a fiber and ONT was installed at my house. This was not the case as the fiber and ONT was already in the house when I moved in. I'm currently still waiting for them to confirm the installation and related clawback fee. Heinrich Dourie from the retentions department phoned me to find out why I wanted to cancel and promised me that he would get back to me regarding my bad service experience. He stopped responding to my mails. Whenever I use the Whatsapp line it takes forever to get hold of an agent and they keep passing me from department to department. the Agent that initially managed to help me never came back to me regarding the clawback fee issue. If they could figure out their clawback fee issue then my contract can finally be cancelled.