Call Centre - High Call Volumes

I just got ****med out of R1000. I accept it is my fault. However, I have tried to do a risk assessment by phoning the Nedbank Call Centre ***several times before committing to the transfer, needless to say that I just got the \we are experiencing high call volumes\" tune and message for minutes on end. I eventually put the phone down in sheer frustration and proceeded with the transfer. They seems understaffed to provide good customer service! "