Reliance Trends — return of my product

Address:

Dehradun, Uttarakhand, 248001

I have bought a sweater shirt and a sweater of Duke brand from Reliance Trend Dehradun on 20.01.19 . Offer was going on by one and get one free on duke. After coming back home i realised that sweat shirt is small, so i called reliance trend customer store of dehradun on same date that i wanted to return one sweatshirt .. he said that you can come next, i had also informed that my mother will be coming to exchange the sweatshirt they said that you can buy any thing of duke below the price you have paid. But today my mother went to store for exchange the staff denied that they want the another sweater also and they cannot exchange the sweatshirt and so many new stories . Its so embarrassing and annoying i have paid and wanted to return within two days but still they are not responding. I want to return and i can take anything below my bill price its my right i dont know why the staff denied when they have already been informed regarding it. Kindly look at the matter and give me a prompt reply. My mail id is [protected]@gmail.com.