No contact, debit orders continue after cancellation

I requested cancellation of my Virgin Active membership. I'd previously requested for membership to be frozen since I've had several surgeries and couldn't utilise my membership. I was told it could not be frozen as I joined via Vitality. Their contact centre phone line stays down. They rep**** to my email a month after it was sent and two further debit orders have gone down since I requested cancellation. No one is responding and you cannot make contact with them.