Hyundai Motor India — refund of my booking amount

Address:

E-13, Defence Colony, near Medanta Hospital, Andrews Ganj, New Delhi, Delhi 110057, India, New Delhi, Delhi, 110057

I have booked an Elite i20 Sportz car from Elroy Hyundai Dealership in Defence Colony, New Delhi on 1st of September and i paid 10, 000/- rupees cash for booking, during this i have clearly mentioned that if my car loan cannot approved by the Bank then i will cancel my booking and Dealer has to refund the whole amount to me. So next day when i checked with the Bank and they said i am not been eligible to get Car loan because of my credit score, so i contacted Elroy Hyundai to cancel my booking and refund the amount to me. So since 2nd of September to till date i am still following with the dealer and they keep telling me that their company MD was away and no one has authorized to sign the cheque. So sir please resolve my issue asap because i need this money very urgent.