No connection for almost a week

Signed up to get fribre through Vumatel and initially things went smoothly. Guys came in, set everything up, my router was sent and all seemed well. But then I didn't have internet connection. Called the service desk and was told there was an issue with my configuration. Again a couple of guys came back to assess the problem and I was told LAST WEEK that the problem had been identified and I would be solved within hours. Today is the 5th day that I have gone without internet access and every time I call the customer line I'm told "a ticket has been open, the problem will be solved soon". Still waiting....