Incorrect Service Fee Charge

Hi I am a Prestige customer and pay a monthly fee of R179 which normally includes credit card fees.<br> Last month i notices a R35.00 service fee raised on my credit card.<br> When i questioned it they offered to reverse the fee as i am a Prestige Plus paying account holder.<br> Meaning i pay a huge monthly fee for all transactions done.<br> They told me it was a system generated issue which i object too because if you impliment something new on your system been part of the big 4, then you have regulated test cases by PASA.<br> I feel someone went into my account and change it without permission but i donot understand how this was done without me calling in to query so where did they get my card number from