Late payment charge ridiculous

<p>Ive had this account for a very long time and have been very loyal to Standard Bank. Last month, *****elnt transactions took place on my account. Standard bank acknowledged the claim and refunded the payment into my account. At the time of the *****elant transactions, I received a statement reflecting the incorrect repayment amount. I paid R500, which is more or less what I normally pay every month. 6 Days later I received an sms stating that I have not paid this account and to avoid penalties I should pay what is due. I immediatley contacted Standard Bank and the consultant informed me that I need to pay in an extra amount of R160.00. Even though I made payment of R500, Standard Bank regarded the shortfall as a late payment. I paid the R160 via EFT from my FNB account. I informed the consultant on the phone that it will take 2 days to reflect. I received at least 2 sms's warning me that I have not made payment as 'I promised'. When I got my statement for December it reflected a whopping R145 charge for 'late payment' I think this is disgusting service because I have not been negligible with my payment. I normally pay the correct amount each and every month and because there was *****lent activities on my account I was not able to see what the true montly installment was.</p>