Vumatel refuses to re-install my Raycore fibre box

Absolutely shocking service from Vumatel. I have been contacting Vumatel on an almost daily basis for the last 2 weeks in order to have my Raycore fibre box fixed. I was informed that the unit is faulty and it needs to be replaced. After many phone calls with many different consultants, I was never given a date nor time when this would be rectified. Eventually I was told that today, 16 March 2019 was the day that they would be coming out to fix my Raycore fibre box by no later than 14:30. !4:30 came and went and I heard nothing from Vumatel. I had to once again, contact them and explain my situation to yet another consultant. I was then informed that the ticket has been closed as if the work had been performed. No Vumatel technician has come out to my premises since I logged the initial problem, on 6 March 2019. I was then informed by the technician that no-one would be coming out today. I then informed the consultant that this is unacceptable service to which he responded by saying he will escalate the matter and phone me back by 18:00 this evening. It is currently 19:33 and I have heard nothing. Vumatel, I am sick of your false promises, bad attitude and general lack of interest in dealing with me as a client. Kindly deliver the services which you claim to offer.