Supersonic - Poor Service

I posted a review on the 31st August 2022 about poor service and Supersonic responded on the same day "Kindly give us a moment to have a look at your account". As of 8 September 2022 no contact from Supersonic. I also sent a mail on the 1st September 2022 cancelling my contract where Supersonic responded that an agent would contact me within 5 days. As of 8 September 2022 still no contact from Supersonic agent. No sense of urgency ! At this rate I can see issues at the end of September 2022 when Supersonic is going to debit order my account even though I have have given them 1 months notice.