Yesterday, I ordered an item through www.rediff.com/shopping by using my Rs 250/- gift voucher, which I received free of cost. All I need to do was to place an order as usual and enter my mobile number. After that I need to send an SMS in proper format and the purchase will be completed.
The order has been processed much faster than expected. I checked the status today morning and the item has been handed over to the courier within less than 24 hours of placing an order.
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http://www.amazon.co.uk/exec/obidos/ASIN/1847190871/
http://www.amazon.com/exec/obidos/tg/detail/-/1847190871