Hyundai Motor India — dealer not returning the booking amount

Address:

Mumbai City, Maharashtra

Dear sir/madam,

I wanted to purchase Hyundai i20 Magna and I was informed by Mahadev Motors(RAJKOT, GUJARAT) which acts as DSA of Shreem Hyundai that the car is readily available at Shreem Hyundai. Hence I had given booking amount of Rs. 10000/- to Shreem Hyundai(Mahalaxmi) The booking amount for i20 Magna was given through net banking on the name of Shreem Motors Pvt. Ltd.
Later I was informed that the car is not available by the DSA and so I cancelled the booking of the car. Now the Shreem Hyundai sales and accounts people(Vanita, Amol, Arti, Santosh) are not giving me satisfactory answer and neither they return my money. I have sent mail to different departments so many times but they don't have any professionalism to even respond to any of them.

Kindly do the needful and guide me.