Contract expired

My gym membership contract expired in March 2024 which I did not renew. As I was travelling for work purposes from June 2025; I sent a WhatsApp enquiring how I can freeze my account. The admin then sent me forms and indicated that I must submit the supporting documents which I did. My account was still debited in July and when I enquired, I was told the lady is on leave and can't assist. I then requested to cancel the contract and was referred to the app. I cancelled and to date I have not received communication from the gym. I then reversed my debit order as my contract has been cancelled and to my surprise they don't know I cancelled and expect me to give three months' notice while I did not renew the contract. Furthermore, the contract does state what happens after expiration date and as far as I know there is no contractr as the month to month contract expired in March