Excessive banking charges

I would like to know why FNB's bank charges have become so expensive over the past year. You make a online payment and they charge you up to R80 which the reference reads #Int pymnt fee. Then there are charges which reads #EFT Charge Fnb to other but yet we pay a fixed monthly fee to avoid all these charges. This has been going on for the past year and when you go to a branch or call the call center no one can answer you. I'm seriously considering switching to another bank. I've had this account for app 20 years and I always used to brag how FNB is the best bank to bank with. Now I don't know anymore. And I am not the only one complaining. People are leaving FNB because of these ridicules charges.