Honda — Car stereo touch not working

Address:

Bikaner

My honda city car stereo touch is not working have lodged a complaint at dealer but has given a timeframe of 30th sept for replacing the part.
My car is in warranty and need an immediate replacement of the stereo.
My cousin is having the same problem in his car at haryana but his stereo is been replaced in three days.
How come other state is taking 45 days to resolve the issue.
Kindly address the same.