whaaky forgery in online shopping WHAAKY .com

Respected sir,
I am P.Kamaraj from Trichirappalli ,Tamilnadu.Fifteen days back I ordered a pair of mobiles in mode of cash on delivery (COD) through Whaaky.com and I received a useless product on 25.8.2017. As soon as we repacked it and send back to the Return section of whaaky online shopping through professional courier (it was mentioned to return through Return section ) on that day itself. Then we mailed the status to them. They replied as within 7 working days the money will be refunded . But money was not refunded and nothing has happened. So kindly take this as serious issue which affect the public like this and take necessary action for the refund . Note : PFA for further actions
The Returns Section,
No 1-8-319/2,
Patigadda Road,
Hyderabad – 500016