Celkon — celkon smart 4g mobile issue from celkon service provider and customer service.

Hi all,
I'd like to share my problem from Celkon service provider and costumer service.

I bought Celkon Smart 4G mobile on 24/11/2017 with RS.2, 849/-. It worked good for Exactly 1 month on the date 25/12/2017, I got complaint with "NO COMMAND" on display. I took it to Celkon Service provider and they said it was software problem and they rectified it and I got it from them(Celkon Service Provider).
Again, on the next day My Phone got Hanged. Again I took it to Service center, they kept it with them for 2days and rectified problem. It worked good for 4days and suddenly Screen is getting blinked.
Again, I took my Phone to Celkon Service Center at different places(i.e not in same Service center where I took previously). When I took to them My Phone came to normal position and working good, but I handled mobile to service center I said I'm suffering continious complaints, please cross check everything, they said okay.

Within 3days I got my mobile back to me and worked again for 8days again I got problem with "NO COMMAND".
Again, I took my handset to same service provider and asked them to send mobile to company any checkit once.They said okay and it may take time upto 20days and I said Okay. I handled my mobile on 27/01/2018. But Service Provider dispatched my handset to company on 03/02/2018 (they didn't intimated me they dispatched mobile on 03/02.2018). Company received handset on 05/02/2018. On 06/02/2018 I made a call to service provider. On the same day evening I got a call from Service Provider that "Sir we received mail about your handset. Your mobile is damaged with Liquid they sent estimation of RS.3140/-".
Here I bought it for RS.2849/- on 24/11/2017 and I got this info from Service Provider with estimation mail of Rs.3140/- on 06/02/2018 .
I spoke to Costumer Service, they said it was liquid damage It was your fault we can't do it in warranty you've to pay estimated amount if not take it return.

What should I do know any suggestions please.