3 weeks for refund for your error!!! Unnaceptable!!!!

Our home loan is paid up. Yet you still took the debit orders off this month and now you tell us it will take 3 weeks minimum to refund us??? NOT ACCEPTABLE!!!! Your mistake - and yet you want to sit on our money ??? This should not take more than 2 days to refund. Why was the debit order not cancelled up front when we paid the loan off???? Understand you need to take the admin fee but not the whole debit order!!! SORT IT OUT NOW!!!