VERY ****ED OFF

So this will be the 3rd month in a row where my account have been debited before the 1st. After phoning numerous of times asking them to change the date to the 1st as i only get pay on the 31st each time they confirm that my debit date is the 1st then on the 25th the debit order goes off. i know who the NAEDO debit order system works and if you only put the debit orders for the 1st to go through they are supposed to track your account from the 1st till there is money in your account not 8 days before your debit order is supposed to go off. The money in may account is for my rent that i have to pay each month on the 25th now i don't have enough funds in my account to pay my rent as MIWAY think it is best for my debit order to go off 8 days before it is supposed to go off. I mean if this is the way you want to do business then i will go and look for another insurance company that actually can let your debit order go off on the correct selected date and not 8 days prior to your debit date. This is the 3rd time in a row now that it has happened and i am very ****ed off and then when i phone i go off on the wrong people that are just doing their job. So i want to speak to the people that let my debit order go off 8 days prior to debit date and give them a piece of my mind.