Indian Railways — allotment of seat reg.

Address:

Gautam Buddh Nagar, Uttar Pradesh, 201310

I did my online ticket as sr citizen, age-62 & my wife 53, on9/02/2018, gotupper berth in duronto from delhi to bhubaneswar, doj-15/02/2018.
But when railway has the provision to provide lower berth to sr. Citizen and ladies above 45, how it issued upper birth. Again i became bound to cancel because we both can't go up.
This is for your information that twice i did online and the same berth again allowed why.
So please go for a quiry and do the needful.