No internet connection, bad service

I am with Vuma on Hyper, I paid on Monday immediately got disconnected, no internet. The router only shows the power button nothing else, I logged 3 tickets on the Hyper portal App on Monday, no response, called Vuma on Tuesday no assistant they said they will get back to me. Called Vuma again yesterday spoke to Mthunzi he said henis escalating the matter will come back to me and never did, spoke to Kgomotso today again he was very rude and said he will call when they have feed back and refused for me to speak to the manager and dropped the call on my ear. Never has such bad service for a service I paid for, Vuma and Hyper don't care at all, its been 4 days without connection and Im working from home, Im stuck with buying data whereas I paid for my fiber. So upset don't know what to do now or how to find help🤬😡😡😡