Nedbank Credit Card Harassment

I cannot believe the harassment today by Nedbank. I have a saving account, credit card and an investment account. I unfortunately missed settling my credit card payment in June and so owed them just over R800. I have had 7 calls today from the call centre with regard the payment and they want to know when can they expect their money? Whilst this is an honest statement - 7 calls?? seriously?

I have come home and settle the full balance and then still received another call - which on the line, Suliman says "oh I can see you made a payment so this call is not necessary" I ask to speak to a supervisor and get told "they not here and he will get someone to phone me"..... I wait....

Nedbank have lost my business - tomorrow I will go close all my accounts and find a bank who wants my investment money and other accounts! This is not the first time I have had annoying pathetic service from Credit Card Division. Last time the manager had to phone me after reviewing the recordings and apologised for the incorrect handling of the information.