Tradus — not delivering of my product

Address:

Virudhunagar, Tamil Nadu

i have ordered a sony W620 14.1mp digital camera from tradus.in on 7.6.2012 and i paid the money of rs.7506 through debit card,and my order id is 2808329.i have called them many times by their contact number [protected] to know the status of my product but they are not responding me in a proper way.They said that they have dispatched my product through ARAMEX couriers on 10.6.2012,Their courier partners said there was no update over my product. After calling them repeatedly i asked the customer executive of tradus to cancel my product and to repay my money, they accepted my cancellation on 28.6.2012 but still i did not get my money back,plz kindly help me to get my money back...
thank you,
gokul.s