Terrible customer service

I placed an order for a fibre line on the 10th of February this year. By the 1st of March I phoned for an update on the status and was informed that the waiting time for installation was extended from 2 weeks to 4-6 weeks. I phoned again yesterday and was transferred to 3 departments before somebody was able to help me, only to discover that there had been no communication and that it would be escalated and I would be phoned back that same afternoon. This did not happen. I have phoned again today and after being transferred to 3 different departments again before receiving help was told there was still no news. When I asked to speak to a manager the line went dead. This was after sitting on the phone for 35 minutes to try get help.