Consumer Redressal

On the 8th Sept., 2014 I booked a flight ticket online through makemytrip.com for a round trip journey on the 19th Sept. from Imphal to Guwahati and from Guwahati to Imphal on the 21st Sept. But, I requested to cancel the flight on the 21st Sept. and on the 17th Sept. I got an email for the confirmation of my cancellation. I had doubt that the company cancelled both the flights, so I made an enquiry and one customer executive told me that only the flight for the 21st Sept. has been cancelled. Again on the 18th Sept. I got an email informing that both the flights have been cancelled and for that I have been charged as penalty a sum of Rs. 3500 out of Rs. 5872 which I paid through netbanking while I booked the flights. So, my request is that makemytrip.com makes me a problem, the company had cancelled my flight which do not want to cancel. For this the company has to pay compensation to me. Please help me in this regard.