Unhappy customer

I've app**** with Vuma to install me a wife router and they sent their installer on Tuesday around 13:00 they installed it and left they told me I'll get an sms with my username and password to use, when I try to use the router there was no internet connection then I phoned Supersonic as they are the ones that works under Vuma they told me that my matter will be escalated to VUMA IT so that it can be resolved they will phone me within 4 to 8 hours no call came in I called again on Wednesday and Thursday still the same stories of 4 to 8hrs now its Friday nothing is happening they gave me two Ref numbers but still nothing I'm not happy about it since I've paid on Friday for the service but it seems like my situation is falling on deaf ears. They need to up their game or employ relevant people not happy at all even now I had to buy Data straight so that my kid will do his school work I'm so disappointed at Vuma