Left with insufficient amount in account

Thank you ABSA for yet again doing an authorised debit and leaving my account with insufficient amount to fulfill my other financail commitments.<br> Surely you know this is wrong and it's not the first time. <br> How can you take R15 000 off someone's account and leave them with nothing without discussing or calling, texting, whatsapping anything!!!<br> Now I can't fulfill my other financial commitments. Please fix this ASAP. You have cause so much inconvenience in my life I just can't anymore.<br> I WANT MY MONEY BACK ASAP. <br> <br> Seriosly need to change banks. I can't do this with you anymore. You do not care for your customers whatsover.<br> 48hours and I want my money back!!!!