Amtrust Mobile Solutions — samsung j7 claim

I bought samsung j7 pro on 1 jan with amtrust insurance financed by home credit. My phone's display has been damaged and i filled for claim and submitted all the documents also. My phone got damaged on 22 april and i filled the claim on 25th. The cause of delay is non working amtrust's online claim portal. I have communicated the same to the representative but now they have rejected my claim saying u have filled claim after 48 hrs.