Pathetic Service. Refuse refund

I ordered my service on 17th September and was ask to pay first before they will come and install my WiFi as I am a new client. On 18th September I paid them and received payment confirmation. On 19th September I received a call from Vumatel asking me if I have a WiFi system already installed at my premises and I said no I need installation. On 21st September they send Maintenance guys out instead of installers. They couldn't do anything because there was nothing in need of maintenance. I needed installation to take place. They left and said they will give feedback for installation that needs to take place. I told them but I did tell them when they called I need installation but they sent maintenance guys. On 25th September I didn't yet heard back from them and I followed up. I was told my matter is escalated and I must wait 48 hours for feedback. Well today is the 1st of October and I'm still waiting with no response or feedback. I asked them to give my money back as I want service from somewhere else and they refused. Maybe they meant wait 48 days and not 48 hours. Whatever you do, don't get services from Web Africa or Vumatel. Worse service ever. You can't reach them on phone they want you to chat on WhatsApp where they ask you to be patient. It's been two weeks now.