Disappointed, to many slip ups.

I am very disappointed in FNB. I am 22 years old and since I had a bank account (16years) I have been with them, but. 3years ago I needed to change my fluid account to a student account which was understanding. I went through every step, and they opened my student account. Every month near to the end I saw money going of from my account saying banking fees, which I understood I wasn't supposed to have anymore. A few months back I got a letter in the post telling me that FNB is going to switch my fluid account if I don't come in, which didn't make any sense, cause I haven't had a fluid account for 3 years. I went in and on the system it showed my account was still a fluid account, which was supposed to be impossible, and not correct since I changed it and had proof in the form of a student bank card. This way I figured out that for 3 years FNB has been taking money from me when my account had less than R500 in which was a regulation of the fluid account, not the student account I changed to. I was very disappointed that when I asked FNB about this, they just said they can't do anything about it (like giving my money back). & Then last week I wanted to use my bank card for the first time in a week and it just didn't work, FNB then told me my bank card was cancelled, I must have put in the wrong pin 2 times, which I know was not true. & Now suddenly I am not able to move money from my savings account to my student account.

This slip ups is starting to make me want to move from banks.