Debits on account

Called the call centre on 3/11 and got cut off after answering authentication questions. Had sent a DM via Twitter earlier that morning as I had received a text confirming I had a zero balance, could not log onto the app or use the cellphone banking channel to check the account as I was getting errors.

I had funds in the account to accommodate the 3 remaining debit orders that had not gone off 1/11 due to the holiday and had also transferred funds for 3/11 for a ticket purchase I had booked on 2/11.

The issue I now have is why was I billed for a no funds alert on 3/11, why was the recall fee debited on 3/11 when the recall was submitted on 18/9 considering the billing cycle for the account is on 28th of every month???