Supersonic bad Service Provider

this is the worst service provider ever , people must never attempt to be part off this scaly business , I have sent emails , posted on face book to date no response from them , I want to cancel this ****ty Wi-Fi service provider, I the week I Facebook responded on their add and asked they should phone me back and left my number to date no call , I sent an email on 5th December inquiring about how to cancel my contract no reply, I emailed again and only got a email with a ticket number say I should respond only to that mail, I mailed the again today (27/02/2025) I don't think I will get a response from them. what can I do to get this contract cancelled , please help