Punjab National Bank [PNB] — refund not received in bank account

Address:

Nalgonda, Andhra Pradesh, 508206

I cancelled train ticket on 26th july, 2018. I paid through my punjab national bank debit card. I haven't received refund into my bank account. I have waited 10 days. Irctc sent me mail that refund successful. Pnr number [protected], irctc transaction id [protected].
Refund reference no:30001282028202211830179.
Please solve this issue as soon as possible.