ACCOUNT COMPLAINT

I have been with Nedbank for quite some time now &have never had a problem with their service etc. I thought when my husband was having issues with d/orders &APO going off at anytime of the month that maybe it was just him. He immediately changed banks. I have 2 loans with them and a credit card. My loans are paid via debit order &I've never had an issue with missing a payment. Last month my debit order didn't go off on the 24/25th as it always does. Instead Nedbank did an APO for my outstanding credit card amount. I noticed 2 payments done from my account R550 + R835.90. I assumed because of the reference number it was a part payment for loan amount of R2872.This morning I see that my account has been debited with R2,872 times 2 -May &June. Needless to say I now have NO MONEY to pay ANYTHING else. I am so despondent at the moment as the 2nd day after payday I don't have a cent for anything except part payment of my rent. Beside this since I have my acc they have never sorted my sms notifications. Each time I go to the bank, God alone knws what they do.Now I know how my husband felt & feel the only way to prevent them from doing as they want with my acc, I should rather change bank