Biscoot Mobile Insurance — Mobile theft claim

Address:	Indore, Madhya Pradesh, 452010
Website:	biscoot.euniversal.co.in

Hi,
My sony experia c3 mobile was theft in indore at palasia signal, this incidence took place while i was on the signal, a male came and hit me and then my phone fell down, before i get my mobile that person took my mobile and ran away, i even shouted but there was huge traffic for someone to hear me.
I also informed them that this is the incidence happened at traffic signal so as a proof they can check the traffic camera clips as well, as i can not access those clips, this incidence happened on 23 nov 2015 and still they are not replying properly, giving reasons that i have not provided the documents on time, as a proof i am also having receipt of courier through which i have send my all documents and mails which shows that i have mailed all my documents on time.
They are delaying this claim for no proper reason.
Please help me with this as i am still mailing them and they don't reply me back (Even a single mail).
Thanks.