Xiaomi India — No response to my repeated queries regarding malfunctioning of mi power bank.

Website:

www.mi.com/in

I had bought a mi power bank of 20, 000 mah power in the month of may from mi india's website. The order id is order id #[protected]
After about 1 and a half month o[censored]sage, it had stopped charging.
So, i requested for assistance from the company via email on august 5, 2016.
They replied on august 6th, that i should go to a service center. I inquired from the nearest service center (Which is about 70km away from my place) and they told me that they don't repair accessories.
So, i replied to company's email again on 15th august to provide me with assistance and they told me that they had escalated the issue to the concerned department and they would get back to me.
I waited for about a week, but, there was no communication from the company. So, i wrote again on aug 24 that nobody contacted me, to which they did not reply. I again asked them to atleast reply on aug 30th. Again there was no reply. So, i raised the complaint on their website, to which i got a reply on sep 6, and this is what they wrote :
"ticket closed.
Because cm raised complaints after tat"

They had closed my complaint.
I again complained on their website, and i received an auto reply, that they shall contact me soon, and it had been almost two months of raising complaints for a product that i hardly used for about 1 month.
They do not even reply.
Atleast they can get the device diagnosed, and they can atleast tell me whether it can be repaired or not.
But, not caring about the complaints is highly irresponsible on the company's part.

I have attached the images of the communication that i had with the company.