Firstcry — Unreasonable shipping charges

I have taken this guaranteed savings code for diapers and paid 4000 to get 25% off on diaper. but they have added so much courier charges on the order even above Rs.499 that the effective discount comes to 8%. In my city I am getting discount of 15% from wholeseller. This is totally cheating after collecting 4000 from me they are adding Rs.119 as courier charges on order of Rs.524. Now I do not want to do business from them and want my money refunded on my credit card.