A wall which knows they can make your life miserable

Such a horrible bank. I wish we ddnt think we need credit to access some assets. I avoided them in varsity. But latre in life when applying for finance you realise banks differe in their offers. So I took finance with them. Its been a nightmare. Firstly they had my details captured incirrectly and I would never get my statements. They it was a mission to change my title when it changed. They still have the wrong address too. Recently they are acting all impossible about a negotiation they offered me on my repayments. They are liers, they say one thing on emails and another on sms. They aren't open to hearing what their clients say. Even one as loyal, honest and open as I have been with them. They are one-sided. They send communication, you respond, yet they never hear what one is sarong. Its like speaking to a wall who knows they have with power to make your life miserable. Guys what county are we living in and what are we going to to do when these institutions are having a field day that life is currently difficult for a lot of South Africans?