[Resolved]  Flipkart — refund/replacement not provided for over a month

I have bought a band watch on may 29th which was not working properly. I asked for a replacement. But they have not provided it with illogical reason that they couldn't reach me, almost 3 times. They even given the status of my order in the website as 'returned' or 'return cancelled' for each of the replacement order. Then they called me and said they will provide a refund for the product once they collect it on 14th june. But no one came. When i called the customer service, they said they will call me on or before 20th june. But now, they sending me mails that they can't reach to me to my number. I had given them another one. For that they send another mail telling that they can't reach that one too. Please give a solution for this.