HTC Mobile — dont give ervice of defaul phone

i m purchase htc desire 826 new phone bill dated 13 th may 2015 of rs 25800/- this phone camera don't worked know and totally loss. and htc service station not give reply need full m submitted my phone on Friday 31st July 2015 bt he not given me job sit and says me minimum 15 day time limit given me for phone repair and no other phone given me temporary used