Punjab National Bank [PNB] — Imps not credited to beneficiary even after 8 days

Address:

625007

I made a IMPS transaction for Rs. 49000 from my PNB SB AC on 4.6.16. The amount is not yet credited to the beneficiary as on 11.6.16. 3 complaints made to customer care email I'd. 1 complaint made to phone banking. 6 calls made to the branch manager (KK Nagar, Madurai branch of TN ). The Beneficiary bank (idbi bank ) has given a email confirmation for not reciving the credit. IMPS site also given a confirmation email stating that the beneficiary account is not credited. But PNB is not at all responding.
Ramakrishnan. V.