Indian Railway Catering & Tourism Corporation [IRCTC] — refund not credited

Address:

Kanpur, Uttar Pradesh, 208001

I shikhar sahu booked the tickets through prn no. [protected] and cancelled the same on 27 feb 2017. Refund of rs 320 has not been credited into my account till yet and the refund status is appearing as refunded.
I am attaching a screenshot of the ticket i cancelled for further details..
Payment was made through the tez app based on upi. Irctc helpline are not at all helpful.