Xiaomi India — Not giving back my power bank nor money

Address:	380015
Website:	Www.mi.com

I have given powerbank for replacement on 31st may 2016 but till date they have not given me back. Whenever I call them they say to wait. When I ask for refund they say we don't have any refund policy. Since 4 months they are not responding to my issue. Once they call and told that collect your powerbank but when i went Cg road Ahmedaba service center nothing was there. they are also making fool. I wasted my time and money every time. My job sheet number is HHIN[protected] and I was given estimate time of 15-20 days but I think it will take years to return my property. No one is taking in charge of this issue. I request u to please help and provide my money back. I will never every think to buy xiaomi product again.