Bad Bad Service: Nedbank

I do some consultation work for a foreign Company in various countries for which I get paid in USD. All incoming funds were always dealt with between the Nedbank and myself via e-mail. The past 3 months, I suddenly experience issues where I do not get notifications and the exchange does not happen when it should. With the volatile exchange rate, I now loose money because Nedbank for some or other reason does not deal with my incoming funds like they should. It also has the effect that it is dealt with after all my debit orders and other moneys are deducted from my bank account and then they also charge me if there are not funds in my account. For the month of June, payment was already made on the 26th June, but Nedbank has still not sent me any notice or the exchange made, one week later. This is shocking and should be dealt with. Worst part is that I sent a mail to my personal banker, which is apparently not at work with a message that I should contact her supervisor. I did that on an urgent request to contact me so that this can be sorted out, but nothing... not even a reply on my e-mail. Shocking. Nedbank is doing something horribly wrong when it comes to client services. Their so-called electronic banking services does not work like it should and seemingly their staff don't care anymore for clients as well.