Club Mahindra Holidays — Harassment and not refunded money

My membership I’d 2887309...and I have taken membership with payment of 80000 and then paid 3 more EMI and did not use any night...As I have been told that u need not to pay any more and now they are continuously deducting amount my different cards and I never done signature on the documentation and I can prove that with help of my bank accounts signature...I want my money refund and I am continuously after them from last 3 months but they are not solving the issue and harassing me by saying give us some more time and I know they will not give my money back