I paid the WiFi but is not working they demand another 400 rand it means I must pay 800 for my WiFi to be activated

I would like to lay a complaint against Web Africa they are not treating their clients in a good manner ,I app**** for a WiFi two months ago to the agents they told me to go and pay 400 rand so that my WiFi will be activated I did so after paying there was no installation and my 400 rand was gone still waiting for the refund till now.I then app**** again they promised me to come and install my WiFi ,but they told me to pay again 400 rand for the activated I thought they will use the one I paid but no they need another amount ,I did and pay 400 rand they install my WiFi.My WiFi was working fine no problem until I paid it on the 2 of April 2025 but they suspended my WiFi and they need another amount,I am very frustrated and stressed already they want to eat all my money I must keep on paying for nothing where is my refund and what about the amount that I paid on the 2 April 2025 .When you call thrm they don't give assistant ,they put the call on hold until you drop it what kind of a company is doing that to their customers,their agents they don't have customer service they need to be trained to deal with customers in a right way I am very furious can you please assist.