Indian Railway Catering & Tourism Corporation [IRCTC] — payment not received

Address:

Allahabad, Uttar Pradesh, 211006

Booked 3rd ac ticket in train no. 12307 transaction id [protected] pnr no. [protected] date of journey 27.10.17 & date of booking 10.08.17, only one berth got confirmed & other being waiting was cancelled, but till date no amount has been refunded to me. Too many days have passed away and it seems that railway should provide me an intrest on this amount, kindly solve this problem at an earliest