Supersonic has the worst service ever....how pathetic for a highly rated internet service provider

I app**** for Supersonic fibre more than 30 days ago and still today the network hasn't been activated. When I app**** I was serving a notice with my old fibre internet provider. I requested Supersonic to send me the router and the signal booster while we are waiting for the old provider to terminate, they said they can't, which is fine. I then sent them a letter of termination from the old provider, since then I have been following up with Supersonic to active the line to no avail. Mind you I have the fibre infrastructure ready and the old router. Everytime I call the call center im told that they will escalate the matter and someone will call me. No one bothers to call me. To make matters worse I call on a daily basis and ask to speak to a team lead or manager, I'm told the system does not have a capacity to connected me to the management team, or it's not their processes. What a painful experience. I was hoping that I would get the best service from supersonic as they were rated number one last year and number two this year by my broadband.