Delays in money available

Please explain how I transfer R2000 from my cheque account to my credit card (on the same profile) on 4 July and on 6 July the money has been out of my current account and not yet showing in my credit card? I think Nedbank should stop trying to be fancy with this new AVO system and rather get the basics right. Are you going to refund me the interest you earned on 2 days of keeping my money? And what if I urgently needed it? Previous time this happened, the consultant said that I transferred it late the previous evening. This time I took a proof of transfer that I can prove that I am not lying. Pretty disgusted.