Pepperfry furniture - Wrong color furniture

I bought * single cots from pepperfry. Firstly the pics were misleading. I assumed there is storage but there wasnt. I somehow compromised as it was my oversight. But when package was opened, the color which was supposed to be walnut snd was depicted in website pics , was entirely diffferent. It is a very dark chocolate brown color clise to black. When i complained they sent a technical person for inspection who also confirmed that the color is almost black and not what is shown in the website. After this they blocked my phone numbers and i couldnt connect with pepperfry customer care again . I have writing mails everyday but nothing is happenning . I want them to take back the product and regund my money