IndiaCakes.com — Indiacakes.com a fraud website

I have placed an order from indiacakes.com. When i placed the order it was showing me multiple delivery options with different charges.So i have chosen an option with 0 delivery charges where delivery will be done the same day but not within some time range. Next day morning when i found that order is still not delivered i called indiacakes.com customer support and then the reply i have got from them was quite surprising . They were asking me to pay an additional amount of 250 Rs for delivery and there was no ask for this while i made the payment and placed the order and no prior mail from them about this additional payment until i called them up.When i asked them to cancel the order and refund the amount they are. not refunding the amount instead giving me a coupon. I want to get my refund since i don't want to use this site again as i feel they are trying to cheat customers by not showing correct price at the time of making payment.