On 6th January 2013, I have taking part of a 100bestbuy contest : Samsung Galaxy Tab 750 :Pay & get a chance to win Contest Coupon. I paid Rs.399/-. I am not wining that contest. They told in the advertisement that they refund the money if anyone not win the contest. I write a email to 100bastbuy regarding this. They told that money will not refundable. Then I have purchase the product on 4th july 2013 and utilizing the previous Rs.399/-, They send a confirmation mail saying that they soon send the tracking number. After that day they have not send any sms or mail or phone call regarding this. I send some complain mail to 100bestbuy. Till today I am not received any mail from 100bestbuy regarding my complain. My total amount of the product is (399+109) = 508/-. I made all the payment through SBI debit card.