Horrible customer experience

I went to the ATM to withdraw some funds. When I inserted my card I received an error and I went inside the branch. I waited at the enquiries queue for almost 15 min then I was called. The bank official at enquiries told me there is a lock up status on my acc I need to see the consultant. I waited for almost 15 min for consultant and the consultant asked the lady who was helping on the banking hall to put me through to cdm. CDM told me I need to go back and see the consultant because this status needs to be removed at the bank. In this process noone explains anything i 've been sent back and forth. I spoke to the team leader and was told that the status is removed so I can access the funds tomorrow. My complaint is how can the bank take R8000 from my account without my concern? I know R3000 was for acc charges because it was not active for 3 months but why did Standard Bank take R5000 without my consent? I know it's overdraft but to take it all at once without even notifying me. I got paid today, I was not able to withdraw my money and they took R5000 without communicating with me. I am moving my acc somewhere else where my needs can be considered.Pls peeps don't use this bank.