SICK AND TIRED OF ABSA BANK

Hello I am really tired of Absa bank. I am sick and tired I have tried talking to them how many times about the debits and how can I pay interest money to my own bank every month more than 1000 this month is was first R700 than R35 something and R100 and something and yesterday R600. Absa is *****ing my money and I work very hard for that salary every month.I could my pay my child school fees I am a mother of 3 and only one working.every month I have this problem I ask them to close the account they said they can't due to my overdraft. I don't know what to do i am just going to change banks and see how to sort the other stuff out with them because this is not write every month I must stress because of this.ABSA BANK SUCKS AND IT'S REALLY MAKING ME ANGRY