Vuma is a ****

I'm so disappointed with the service from vuma and their technicians we reported our router is not connecting with our cellphones since from last month and they said a technician will come but till today nothing is happening yet we will be expected to pay in full for something we have not being using I feel vuma is ****ming us nje you want us to pay for the service you not giving and it's so wrong I don't even understand how their technicians work if there's a problem they just keep quite and do nothing about it?