Supersonic and Vuma-Ignores cancellations requests and keep taking your money

I have been trying to cancel a fibre contract from March which was app**** with supersonic and handled by vuma with no luck. When I contact supersonic they cant find my account and no one seems willing to resolve my issue. And I'm still being debited for an account I cancelled. I'm just frustrated and still waiting for refunds for all the money taken. The whole experience has left me with a bitter taste for both service providers and I wouldn't recommend them to anyone.