Coupondunia has been a lot famous for their coupon through which you can claim discounts from some partner websites but sadly most of the coupons present there are not worth it.and you may not be able to use them as they are of no use for most of the users.
Recently I insatalled dish tv and I got coupons worth 2000 but they are just useless for me as the coupons to which they are linked to are not present in my city and even I dont use it for my uses.
Most of the coupons listed there you can already find on the websites directly.No use.
Thanks.