Supersonic - Worst ISP & Customer Service

After months of technical issues logged, Supersonic never resolved the issue or call me as promised. I've logged a ticket on 17 June for my WiFi dropping every night from 5pm to the next morning. First they said it will be resolved within 72 hours. I called after 48 hours, they were very arrogant saying that I needed to wait 72 hours. I call after 72 hours and everyday after, where they confirm a technician will call back. To date (26 June) no phone calls from Supersonic at all. They don't take ownership nor servicing their client as it should be. Their story everyday is "I am sorry for the inconvenience, a technician will call you back". This is the worst customer service I've received so far, with loads of lies. I'm cancelling my contract with them to move to another ISP for cheaper.