Webafrica: Sloppy service

I recently placed an order for fibre to be installed with Webafrica. When the infrastructure men came to install, they noticed that my address does not automatically appear on the fibre network. On Monday 22 February 2021, I engaged them via phone and WhatsApp number to correct my address. The next day I constantly receive SMSs and emails saying I must make a payment. Again I took the long process by what sapping and calling them to indicate that I've made the payment on 5 February 2021, that led to the failed installation on 20 February 2021.

Ever since, I am struggling to get hold of them and I am on the verge to cancel my order. However, other ISPs have indicated that I first have to cancel with Webafrica before I can place an order again

I do not know what to do anymore.