Xiaomi — buffing sound and network stuck too much

Address:

Xiaomi(MI) Head Office Address India Xiaomi Technology India Private Limited 8th Floor, Tower-1, Umiya Business Bay, Marathahalli-Sarjapur, Outer Ring Road, Bangalore, Karnataka, India, Pin Code – 560103, 560103

Dear sir,

It is closed every time without inform me.
They have not shame to do it. They are deceiving all customer, we see in service center.

They are totally made fool and robbed.

I have been complaining since 5 months but issue not resolved after 14 times visited. They did not give us job sheet. Online support ask for job sheet for futher investigation, we do talked with service center person for job sheet then say us online support, there is no need for.

We have not been helped while mail and twitter to mr. Leijun and mr. Manu kumar jain.
Why are they doing so in this case.
We said, please take away this handset, no need replace or refund but not answering

Who will help me? Kindly suggest.

Thanks
Dilip
+91-[protected]