Ebazar Ninja — MI power bank 10400mAh FAKE 1

Address:	110092
Website:	http//ebazar.ninja

I buy MI power bank 10400mAh from eBazar Ninja online store on 02/03/2017 Invoice No- OID338443 code- 234076 VAT/TIN-[protected]. But I charge it full and then charge my mobile which is 2550 mAh it fully charge just 2 time then Power bank charge is Big Zero. After seeing this I am too much sad and think what to do. I do not want this power bank @ I want refund. please help me from this problem.