FNB Increased all their credit card customers' interest rates with 5% but can't fix it.

When I received my credit card statement on the 7th of July, I saw that my interest rate has gone up with 5%. I immediately logged a call with FNB with a person named Menzi. He said that they would get back to me within 24 - 48 hours. They didn't. So I called again. The lady I spoke to logged the call and said someone would get back to me within 24 - 48 hours. They didn't. I had to complain on their facebook page to get any help. They finally called, and said that the matter would be sorted. It is almost three weeks later and they still have not refunded me. They also can't recreate the statement with the correct amounts on it. This is called *****ing when you take people's money like this. Also, please note that they lady I finally spoke to on Thursday 23 July told me that there was a glitch in their system and the 5% increase happened to all their credit card customers. FNB is earning interest on our money and they don't know how to fix the problem or by when it will be fixed. She did not give me her name probably because she knows that she is a very rude person who doesn't care about their customers. FNB will take your money, be rude to you and not refund you for their mistake.