Modi Hyundai — delay in refund of booking amount since last 9 months

Address:

Thane, Maharashtra

I have purchased hyundai creta 1.6 e plus petrol from modi hyundai thane & got delivery of vehicle on 13.01.2017 (Engine no g4fggu889471, chasis no malc181clcgm188913l.
As it was a corporate purchase by m/s jsw steel coated products ltd. The total amount is paid to you by cheque.
At the time of booking, i have paid rs 11000/ as booking amount which has to be refunded immediately after getting full payment.
But till date i have not got refund of rs 11000/.
Please do the needful.