Indian Army — mobile phone fraud

Sir my name is harun and i seen ad of mr jaikishan on olx, iphone 6s plus, i liked it i contacted him he told me pay 13000 i paid via paytm 13000 then, his colouge phone me, and i totaly paid them 40000 via paytm still not got phone delevery i felt they done with me, so sir please take strict action agains them they told me they are army man, so sir this is reputation of army, please take action against them and i need my money back 40000 please help me thank you