Debit Order

I had money on my bank account for my 2 debit orders that were due to go through on 28 Nov 2020. Today I see I was charged a R110 for the returned debit order although I had money reserved on the account for it. I called the call centre and they cant explain to me why only one debit order was successful. I have a positive balance on my account but my debit order was unsuccessful. Please reverse the returned debit order charge because I had money on my account. I closed the account with ABSA few years ago because of such nonsense. I swear I wont pay it, ill move to Capitec if I must!