Rediff Order Cancelled | NO Refund

Location/place: Delhi

Name of company/service: Rediff Online Shopping

Hi,

I placed an order for Car Vacuum + Scratch Remover Pen + Dent Remover+Folding Multifunction Storage Stool Seat Box+Foldable Laundry Bag+Folding Multifunction Storage Stool Seat Box Black
on Rediff Online Shopping site through my Credit Card.The order no. is 7654877. As soon as the payment is debitted from my a/c, i received a mail from Rediff that the order has been cancelled. I tried their customer care no’s and wrote a mail to them twice but all my appeals went unanswered. I want to know the reason behind cancelling my order and when will they refund my money? Hope you could help me out.