Bad customer experience with Supersonic

I had technical issues with my router on the 30th called Supersonic and was transferred by 5 different agents which made me give up and dropped the call. I later called to cancel my subscription was provided the ref#CAS-114697-M6B7J1 and advised that a cancelation agent will call me to finalise three days later I’m still waiting on the agent and tried getting hold of them through their what’s up line and was not successful. I have had it with the service provided and need to cancel and move on. Hopefully I don’t get someone to tells me that my cancelation was later, and I have to be with them for another month, unfortunately I can what’s up chats and the ref# received.