Unfair gym charges

My wife is a member of Gym Company and the subscription payments get deducted from my account. Last year during hard lockdown; Gym Company continued to debit my account despite the fact that they themselves were not in a position to provide for services. after 3 or 4 months of paying for nothing I reversed the 1 month payment through the banking app. From that time we started receiving phone calls about payment. Our stance has been very simple; we are willing to pay but we must derive value for payment. Subsequent this they started to deduct more than the contract amount and that is when I stopped the payments. We keep getting calls wherein they want to claim for the time when the gyms were closed and the amount keeps going up.

I have made various requests to the representatives to only charge me for the time when the gym was open and they refuse and are still wanting to recover everything. My view is this is not fair as they cannot expect me to comply with contractual obligations in circumstances where they themselves could not provide gym facilities due to lock down. I am willing to pay for the time when the gym was open and it was up to an individual whether to go to the gym or not.