Xiaomi India — Redmi note 3 in service center for last 3 months

Website:

mi.com/in

Jobsheet no. WXIN[protected]
Initially display got off after use for 3 months .
Submitted to service center on 26 August

Besides number of visits to service centre and calls to customer care and emails
The only response I am getting that issue is escalated and concern team will call you back this is what I hear from them everyday.
During last visit to service center problem of motherboard failure was detected by them as said in misleading manner.
Still I don't know when I will get the call back from concern team and no hopes of getting the phone back.
It would have been better if it was stolen then I would have not waited for that.