Small transfer amounts on internet banking

I think it is absolutely immoral and terrible for FNB to charge someone for every small transfer paid back to the credit card - which is good behaviour - particularly because they actively advertise that we should pay our bills and debit orders through the credit card, and then they basically penalise people for doing this, and paying back into the card. I am getting so sick of FNB for these small hidden charges on the platinum account, thinking 'what's a couple of rand to a platinum customer'. This is disingenuous, and I have finally made up my mind to settle my debts with FNB and move to another bank. This is getting ridiculous and entirely unnecessary.