Unresolved query and now we are listed on ITC

I had a 3 year contract which i paid every month. I tried cancelling it and was told i needed to wait for the 3 years to expire, which i did. I then called the gym as the country was in total lockdown and no one answered, no alternative number was given either. After i paid for the full 3 years, i cancelled the debit order. Since the end of last year i have been trying to sort out this matter, but the managers never call back and when they eventually call back, a few months have passed and more fees accrued. I then got hold of Lucky, gave him the full story and he promised to get back with a solution...another 3 months later with no feedback, we were listed on ITC. This is the worst of the worst places to try and cancel payments with. I cant even say a contract as i do not have a contract with them anymore, yet they keep threatening. I have emailed Lucky but i am sure my request will also be ignored and they will just add more fees.