Horrid Service

so I cancelled my subscription I had n problem with, I really dont know why, nevertheless, I assumed that my connection would be better and the service would be exceptional as my previous service provider. Supersonic Fibrecame to do a quick sale, provided me with a router and I was connected for two days. I have been down for an entire week with no connection and everytime I call I am told that the technician will attend to my request. I have had a tech come to my house but left without even bothering to check what the problem was. No one came back to me, no one even bothered to return any of my calls. I will never ever recommend Supersonic Fiber to anyone and I want the worl to know about their bad service. I am so disappointed!!!! Today I am still waiting for someone to get back to me, I have to keep calling and I cant even speak to a manager or go into their office. I have proof of messenger discussions but still no service and no internet connection.