Pathetic service Supersonic

I am extremely disappointed with the service from Supersonic. I have been a loyal Customer with them for more than 2 years. When I decided to cancel my service due to installing Fibre in my home I had to give one month's notice to cancel the service. I emailed the Company in December 2021 giving 30 days notice and my last premium was to be on 25th January 2022. I even called numerous times in order to ensure that my service is canceled and I do not get billed in February. When I received an sms in February saying I will be debited for the premium and claw back fee I again called them only to be told I will not be charged. I will be refunded the following Tuesday or Thursday. This was communicated to me staff member Brighton. I have names of all the other individuals that I spoke to. Anyway it is now May and I still have not been refunded. Called the company over 50 times and still no one calls me back. Managment of Supersonic, I have never been so disappointed with a service provider before. I have left messages for a supervisor or manager to call and no one calls. Extremely Terrible service. Do not use Supersonic.