Parents frauded by Country club membership

Hi, My parents bought Country club membership approximately 3 years back from their Outer ring road, Bangalore office. Being new to the city, they were unaware of the scam/fraud. They told my parents that the membership would be beneficial to them as them and the entire family (us kids) can also use the membership. The offerings they mentioned were free accommodations in any of the resorts and hotels, free breakfast, dinner, free pickup and drop to airports and sightseeing, free beauty salon and spa services etc. They specifically mentioned that we only need to pay for taxes and nothing else, and that the kids(us) would also be able to avail the services. They also mentioned that my parents could cancel the membership whenever they want and full amount would be refunded. When my parents wanted to speak to me over the phone about this, the agent wont leave their side and later would not let me speak to them. They tricked my parents to pay a sum of Rs 1 Lakh to them. I had to no idea what was happening Later on when I came to home, they told me about the membership and on reading the agreement I found out that only the spouse(parents) can use the services and not anyone else in the family. Since they don't travel much the membership was of no use to them and we decided to cancel it. On calling their sales representative, they reassured that anyone in the family can use the services. However, later on we figured that that was not the case and I asked my father to get it cancelled. After many attempts to reach the person, the same sales representative told us that cancellation can only be done after an year and meanwhile we use the membership. My father decided to wait for an year and then cancel it. The reason to do so was no extra charges were to be paid. My parents moved back to hometown after a month. Later we tried tried to book their resort/club, we were told that they stay can only be for the parents and that we would have to pay the charges as well. Turns out the promise that we only need to pay the taxes on stay was a lie. We contacted country club and were also told that if we use the services some money would need to be paid by us. We decided to go for immediate cancellation. The same sales representative this told that cancellation is not possible and that they can transfer it someone else for us. Once membership is transferred, they would pay the entire money along with the interest. My father agreed to that. I was not aware of things that happened in between and later on. But it has been 3 years now that he has been chasing these people. They don't respond or keep telling the lies. The problem is I told my father to get these assurances in writing but the person never responded. Today he got another call from them asking to pay some money after which I have come to know the entire ordeal. What can we do the get the cancellation done and our money back?