India Post — delay of money order

I manjula bk, on 24/7/2017 from lingarajpuram post office i have sent rs 3000/- to my mother who is staying in davangere but even after a week she has received. I enquired with lingarajpuran post office and given written complaint but i have got satisfactory respond fro them and suggested me to contact davangere post office so as they said i called and enquired with davangere post office also but they are saying that the emo pnr number itself is wrong and again they told me to cross check with lingarajpuram post office representative but here they are not responding properly so please accept my complaint and do needful
Thanking you