[Resolved]  Samsung India — mobile c7pro produces electric spark when device is getting heat

Address:

Bangalore, Karnataka, 560102

The issue i was getting the very first time on 6th aug 2018 and i submitted to customer service center one which is in hsr layout, banglore.
They are telling its because of motherboard and they don have surety that this problem wont occur again, and they are orally strong enough and try to convince me that this problem wont occur. So i asked them to write a letter and give to me saying the same. They are not ready.
So please take this phone back and give my money back as the device is in warranty also i don't want to take risk on a phone.
Even if i collect back the device i really scared to charge, samsung is forcing me to take up this risk.
These are the details:
Job sheet no:[protected]
Please see the attached video.