Flatsale. Online — return of product

I had ordered fastrack watch along with mi power bank. I made complete payment, but the watch don't seems to be original. I wants to contact customer care several times, but it was not connected.
It seems that the phone no. Is fake
Their receipt description and the actual product specification didn't match. On receipt they mention 20800mah & the rapper box shows25000mah.
Completely fake product