This is my experience with Airdeccan. I had booked my tickets from Chennai to Bangalore on May 1st. The flight got delayed by more than 2 hours and I had cancelled my ticket. The Airdeccan counter in Chennai told me that I need to pickup my refund from the agent I got the tickets in Bangalore. When I went to the agent in Bangalore to collect my refund, the response I got was that Air deccan had not paid the agent some 1 lakh that was due to him and so he would not refund my ticket.
Never fly by Airdeccan and get carried away by their low fare ticket prices. You will lose your money, your trips will be cancelled and you will lose your piece of mind. They need change their motto as simplycheat instead of simplifly.
They are the worst airline that I have seen. I have lived in US and Europe.