Lenovo — Mobile service centre

Address:

431201

I purchased lenovo k4 note mobile online from Amazon. Update its software to marshmallow 6.0 version when it get avail. After some day I faced problem of automatic sound level decreasing.
Once while driving car using navigation on this mobile suddenly get off and not start again. When I saw it to othorise service center at aurangabad they check and told me to submit it for replacement of chip and volume keys for 15 to 20 days. Today I bring it and checked. I found privious problem was solved but now mobile not register any SIM in both slots, selfie camera shows black shadow at top portion. Tell me what kind of sevice is this. Again I submit the mobile for 20 days for your negligence.
I'm very much disappoint for poor service in aurangabad. They even not have potential to serve for your brand.
Please guide me to get my mobile as previous one.

Bhushan Manusmare
Amazon order no.[protected]
Date of purchase 02 Feb 2016.