SUPERSONIC - THANKS FOR NOTHING!!!!!!!!!

Just an update on my "Supersonic" experience. My 100/100 megabit line was installed end July 2021. My woes started the day they installed the router on 17 August. My download speed in peak periods between 7 & 9 pm ranges between 2 & 3 megabits p/s. After many many hours spent on the phone, I instructed them to fetch their router. Supersonic have the worst service I have ever experienced. I was promised by their technical staff that I would be contacted every day until the problem was sorted out - this happened for two or three days and then..... NOTHING. They insisted that I have to serve the month of October as a notice month and now want Payment (WHAT A JOKE IF THEY THINK I WILL PAY FOR A 100 MB LINE WHEN I AM GETTING 2 MB!!!!!) To Supersonic - THANKS FOR NOTHING!!!!!!!!!!!