No assistance from Zonefitness!

I signed up on my Zone contract in Jan 2020 for a 12 month contract. I sent them an email in November to ask when I can put in my cancellation. They came back to me to say that my contract was extended for 3 month due to no debit order going off because of Covid. I then rep**** by saying that I want to cancel, as covid was not my fault just as much as it is not their fault, but I am pretty sure if I signed up for 12 months and I want to cancel, I am able to. I've emailed a lot of times but they just don't get back to me. Might I add that I've paid them for every month that they've opted to debit my account and not visited their premises, even though some may think it is safe, I don't. I think it is fair to cancel my contract as requested when the last debit order for the 12th month has gone off. I need someone reliable to contact me as the store is not. I've also asked for my signed contract and still nothing after 2 months???? Very bad service.