Supersonic bad service

Ordered a Fibre contract, waited long for the router and black box. Router was not activated. Spent lots of money on airtime and data to get hold of Supersonic. You hold on forever with the call centre and the WhatsApp line keeps closing before you can try to resolve the matter. And different people gives you different info. I eventually cancelled my order as the service is unacceptable. Now I'm battling for them to release line. I've been so long without WiFi plus I work from home. I literally have been trying to contact them everyday but nothing gets concluded or you just struggle to get hold of anyone.