Saravana Stores — Forcefully collecting the parking fee

Today I have visited Chrompet Saravana Store. While entering into the parking slot, security come and collect the parking fee as Rs:50. Also, he said that you can claim the parking fee into the shopping or any food court. He clearly mentioned to claim the amount in the food court. While trying to purchase the product, I'm not satisfied to purchase. So I decided to take some snacks in the food court and claim the parking fee. At the time I checked the food court, they are refused to accept the parking bill. Also, they're told to reach out the supervisor. When I checked with both of the supervisor & security, both are treated me irrespectively. Also, they forced me to buy a product from their store.

Please make some changes on the parking fee. Because your not providing the security to my bike. That was mentioned the board.
Parking at Owners Risk. Then why your collecting parking fee?