I have mentioned the above statement from the experience with them. I had bought a xiaomi 10400mah power bank from here.
The power bank what I got was not even offering 1400mah power for charging. The quality was really worst.
After discovering this I asked for the return of the product. They just denied my complaint request and did not refund my amount back. Hence I would suggest you all to buy from Flipkart or amazon which is better websites where you get original goods.