Funds not received by recipient

i made payment via internet banking to the beneficiary that i always pay without changing any details i was advised by the recipient that they didn't receive the funds , an inquiry was log by recipient's bank and thereafter it was confirmed not received this payment was made on the 04 March 2015. I logged an inquiry with STD Bank after i made payment to same person and it was received without changing any details , until today i am still waiting for feedback i have called them numerous time and spend an hour explaining myself to be told that my case my log incorrectly REF ***