Consumer Redressal

I have booked to & fro Air Ticket from Bangalalore to Delhi and back for my Brother's family through Make Mytrip one month in advance and without my reqeust or their intimation they have cancelled the Return ticket which was of 08.03.2015. This we came to know throuhg the Indigo Airlines and when contacted Makemytrip they asked to book fresh ticket and to travell and to send the Ticket and boarding pass scan copy for refund. But till date they have not refunded the full amount and just for email new new person are replying and asking for time this is purely intenational cheating and money making I request to help in this regard. I have all the documents with me and correspondence in this regard S.V.SREENIVAS PRASAD