Pathetic Service and very Unreliable

I have had my service disconnected since the 31st July 2021. I have been trying to get a new ISP to provide my service. Supersonic are not releasing my Fibre line with Vumatel in order for the new service provider to reconnect. They have very gladly taken my money but refuse to release the line. This is highly selfish of them as I have had no Fibre Lone for the entire week. I am warning everyone of Supersonic as a service provider, I have had endless problems, they lie about their speeds, make you wait for hours just to get through to a service agent only, they also cut your calls after waiting on the line. These are some of the reasons I have decided to move on to another service provider but it seems that they are holding my line "hostage". Be warned they are exceptionally unprofessional as a service provider. As I write this message I still do not have any wifi at home and I am disconnected. My daughter could not attend virtual school classes because of no internet. How sick is this company that they can have their own way. I have called and emailed and absolutely no results. Is there an Ombudsman that we can approach to discipline and fine companies for this behaviour and failure to abide by compliance principles. My new service provider even tried to contact Vumatel and Supersonic on my behalf and even they failed. That is how useless Supersonic is.