Airtel — denying insurance of my phone

Address:

Sonipat, Haryana, 131023

I registered my google pixel on airtel secure on 13th march 2018. On 2nd april i applied for my damaged phone insurance (Which damaged on 1st or 2nd april). They rejected my claim by saying "reclaiming the same damages for which claim already rejected".

The actual story is this :
At first, my phone was damaged on 2nd march and they rejected due to imei number mismatch which was their mistake because they never told me about my change of motherboard (As it was replaced by airtel only and they never sent me the details of my phone repair). So i got repaired my phone from the service center.

Now after my phone was repaired again i registered on airtel secure on 13th march 2018
I uploaded my phone pictures and everything. They successfully verified my details.
But now when i was claiming my insurance on 2nd april 2018 they rejected by saying i am claiming the same damage i applied before on 2nd march 2018.

I mean are they dumb or what. They verified the pictures and everything when i was registering their service.
I want my phone to be repaired. I can't bear the cost of rs. 40000