Standard Bank early debit order

I put money into my standard bank account today to pay someone, Standard Bank decides that this money is for them to debit me for my homeloan, my homeloan is only supposed to go off month end on the 31st of every month when i get paid, *** and you wonder why they are closing down branches, because people are leaving you for other banks, wake up and smell the coffee, please return my money so that i can make my payment as intended