MY KIDS AND I ARE GOING TO GO HUNGRY THIS MONTH BECAUSE OF THIS UNFAIR TREATMENT

I had arrears on my home loan account, that I paid off on the 23rd. Transferring money to the home loan account I transferred 5000 and 4500 seperately by error. I should have paid 6000 instead of 9500. I have been trying to get them to refund me the 3500, as i am a struggling single mother and I need the money for my transport and food. However they rejected that request saying the debit order was rejected therefore they cannot refund. ref ***. I phoned again saying I transferred the money myself 9500 days before the debit order therefore i need the refund ***, they came back rejecting the refund of 3500 saying my account had previously fallen into arrears the previous years, which I had made arrangements and settled that issue before. I had to finally accept that I cannot get the refund back, however I have to go get loans so i can survive this month. I then requested that the extra amount be taken as part of my instalment for the next month, otherwise I wont have this money to pay the next month, as I have to make loans to survive this month. This arrangement was also rejected. So Standard Bank has decided to take my money whether I like it or not. I feel I am unfairly treated because my account once fell into arrears, even when I was trying to do good.