Incorrect debit date

Please treat with urgency

For the second time the dmdate which the debit order is scheduled to run is incorrect (2 days prior salary date) The first time I incurred over 300 of charges from the bank for failed debit order that was set before the agreed upon date, I decided to pay the charges because this was the first negative incident I'm having with debt busters and I called in to notify them and requested that for future reference rather the debit order run after salary date. Once again I've received communication that they are going to debit 2 days before and when I call in I was advised that there is nothing they can do and I my take the charges from the bank.