Very angry customer

I have purchased a Rain 5G router and it was delivered at my workplace last week Friday,I never had internet excess since I received it,I've been calling and emailing them but none of them has called me.They told me that they will send an IT Technician to come to my house but no one has ever came.Rain service provider doesn't care about their customers but instead they are very fast to make a person pay that R499.Iam very disappointed because I cancelled one of my service provider thinking that I will get the best service from Rain but IAM now sitting in my home without WiFi and the worst case scenario is that we are using a smart TV that only uses WiFi.I will never advice anyone to use Rain because I've seen the worst from them.I mean it's been days but IAM still sitting without WiFi,m really angry with how they treat us as customers.