Clients incorrectly charged for bank process

I recently received an SMS from Absa to inform me that I needed to visit my nearest branch to exchange my bank cards for more secure cards that work on a chip and pin system. When I arrived at the enquiries counter of East Rand Mall Absa I expressly asked the staff member if I would be changed for new cards and he confirmed that there was no charge involved. When I checked my bank statement last week I realised that I have been charged R80 per card that was replaced(I replaced 3). This is ludicrous since I did not lose my cards, under Absa's instructions I came to replace my cards and your enquiries staff member confirmed that there was no charge involved. As a pensioner I am outraged about this abysmal lack of customer service. I refuse to pay these charges and expect them to be reversed with immediate effect, failing which I will hand this matter over to my legal team. In addition, I was not informed that Absa Boksburg has re-opened as I am waiting to replace the contents of my safety deposit box after the boxes were moved to Kempton Park. Another example of the lack of customer service delivery from Absa