Ebazar Ninja — 20000mah power bank is fake

Address:	500032
Website:	www.ebazar.ninja

Hi
I have received mi 20, 800 mah power bank against order id:- oid260355 and i found its very poor efficiency. I have been observed approx for 3-times with charging power bank completely and used to charge my mobile samsung note-5 (Battery capacity 3000mah).
At least my mobile should need to charge for 6-times but its not even lasting 2-times.
I already having mi 10400mah power bank and it will come for 2.5 times once complete power bank charged for my note-5 mobile. Finally i have observed its fake, since if it is 20800mah than if we charge it with dc 1amp adaptor at least it should charge for 21-22 hours, but i have observed with in 10-11 hours its charging.
Its really not fulfilling my requirement, actually i am frequently travelling and existing one back is less. So i gone for another higher capacity but too horrible.
Kindly consider the issue on priority and please exchange it (Or) return my money by taking it back.