Indian Railways — refund not received from indian railway for cancelling the ticket

Address:

421503

I have not received a refund amount of inr 440 for cancelling the ticket
The details are as follows.

Ticket pnr number [protected]
Train number 11094
Date of journey 30/03/2018
From satna to kalyan
I made payment through my sbi rupay debit card while booking the ticket from ambernath railway station.
I cancelled the ticket from rewa railway station
They told me that you will get your refund within 7 days
But it is been more than 200 days i have not received the refund.
I visited csmt railway station 3 times for the refund but they are saying they also don't know the status of the refund.
I am really frustrated and planning to lodge a complaint in consumer court if refund not credited within 15 days.

Name of the passenger arvind sahu 22 year male

Mail id: [protected]@gmail.com

Mobile [protected]