Absa *****sters

I want to know why Absa is taking 70% of my earnings without my authorization. I am left with just below 30% of my earnings to live on. I have a life cover which is supposed to debit R80,30 and this month alone they have debited that amount 7 times including other deductions that I don't know of, in a few days apart from each other. The worst part is that they don't show on my statement. If I knew this bank would do this I would not bank with them, I want all my money's reversed and I'm closing the account. This is something that has been happening for months and their agents keep lying to me. I will even drop their names. My whole family will be closing their accounts with Absa and withdrawing all the investments we have with Absa and take it to another bank.