Xiaomi India — Redmi note 3 service issue

Address:	New Delhi, Delhi, 110096
Website:	www.mi.com

Dear Team,
As i am using redmi note 3 for 3 months .During this period my phones`s touch become irresponsible two times and i restarted the phn and it works but this time touch is not working and i restarted the phn so many times but all in vain .so i take my phn to service center and they said it`s motherboard get damaged due to water but i dont know how this could be possible as i was charging my phn then i checked it it was working then i continue to charge (as battery is only 35% that time) after an hour when battery is about to full, touch become unresponsive .Then how they can say that . and they are asking for 10000 rs . I am so frustrated with this service because before this i was using redmi 2 for 2 months only after that it`s motherboard get damaged (according to your service center). What is the problem with these Mi phones.
Kindly resolve this issue with Mi series.
Thanks