Fix accounts department

This company has the most awesome, friendly and all-round professional staff that deals directly with their clients, particularly Peter Marais and i'd like to praise them, due to their quick,efficient and friendly service. Unfortunately the accounts department is a far cry from this. My debit order at the end of August fell through as i my salary was paid late, due to this i paid them the amount as soon as i was told to via a notification. So the next month comes and i have enough cash for the debit order, only this time they double debit me, without any warning or notification. This is unacceptable as i've manually paid this 'missing' amount via eft and no notification was given either. So i contact the accounts department and ask for my refund. They reply telling me i now have a months credit, this makes no sense as the double debit order went off almost a month after i paid the eft amount. So i try reasoning with them, they've messed up my budget for the month and they give me this story. I've sent a few emails, but they seem to only reply when their company name is at stake or they need something from you. No follow-up solutions or some sort of assurance that this matter will be sorted. Pity your accounts department brings down the name of such a good company. Fix it please.