FNB Payment on Hold - no communication from the bank

I released a payment FNB to FNB last night, and my guys went to pick up the car, the owner rightfully refused to release the car as the payment was not showing, We tried again to pick up the car this morning and the funds was still not showing, I phoned in this morning as was told that random security checks cause some payments to be held, they will release the payment in an hour, meanwhile we are left sitting on the sidewalk waiting for an hour for FNB to release the payment. Just for interest sake how would any FNB client know that a payment is on hold ....... do we have to smell what you are doing? Or would someone eventually phoned me??? Thank you you messing up about 4 people's day.