6months purchaseso debited on Wednesday

On Wednesday evening I received about 15 smse regarding purchases / transactions worth R7325 for the period of April-Aug 2017. Although I paid with my debit card, ABSA says that the supplier never received their money. Wednesday absa decided to debit my account without warning, not enough funds available for the R7325, within 2 minutes. My account is now in negative and I obviously have no funds available for the rest of the month! Not a cent! KFC, CHECKERS, ROMANS and MAKRO. It is random purchases made with you over the months which you apparently didn't settle and ABSA decided to take now. Absa are you allowed to take money without warning and without enough funds available? Absa do you think it is fair leaving me without any funds for the rest of the month and its also my son's birthday? Absa. As soon as this is settled, I am moving to another bank. Abs are you even aware that I've been a client for 31 years? KFC, CHECKERS, ROMANS, MAKRO: I will go out of my way not to purchase anything from you in the future. You were just convenience since you are 500m closers to me. That's all. Nothing spectacular. All the other persons affected like me, I hope that you will also close your accounts at absa so that we can stand together. I also hope that you will not support KFC CHECKERS MAKRO AND ROMANS from now on.