Appalling follow up service from FNB

After receiving no response after reporting that the minimum balance had been paid on my credit card, instead of the full amount, I shared my experience on this website. FNB responded and also sent me emails and SMSs stating that my complaint was High Priority, that it had been sent to the Customer Resolution Centre, and that I would be contacted within 24 to 48 hours. That was a week ago. I am still waiting. This morning I phoned the number given for the Customer Resolution Centre and was told that an email would be sent to the person dealing with my complaint. I asked to be contacted before midday. Again, nothing has happened. FNB simply couldn't care less about their clients, and the buck gets passed from one person to the next, with nobody willing to take responsibility.