Aaj Tak — Mobile not repaired from 4 months

Address:

Moradabad, Uttar Pradesh, 244501

Dear sir/mam
I submitted my mi mobile on dated 05.04.16. 4 months has gone but mobile is not repaired till now. I called many times to service center and call center and mailed to their mail id. But they are not confirming.
I am regular following on service center but they are not responding.

Request to you please help me.

Regards
Nripendra kumar
[protected]