Missing GreenBacks

I have called Nedbank twice to query the non-allocation and switch of my swipes to GB. I have on both occasions been kept on hold for 20 minutes with no resolution and having to explain my query numerously. It is completely unprofessional to have your client hold for so long and timeous exercise to have you correct your error. It is distressing that in a time like this you have to have your clients point out an error that the transactions done from 17/07 -31/07 was not allocated. I am disgruntled that I was promised call backs and no resolution. Nedbank is definitely not giving back