Datawind — not refunding my money

Address:

Ghaziabad, Uttar Pradesh

Dear Sir/madam

my name is Sankalp Tripathi and had ordered ub slate 7 from datawind five to six months back by cheque of dutshee bank . but still they are not able to deliver me the tablet nor able to refund my money. I have sent mail to payment department as well as refund department for the refund but I am not getting my money also and they are not even replying to mail. and money I spent buying teh tablet is 3000 rupees so this is a total loss of money neither getting
the refund nor the product. please help me to get my money back.