I want my money back

MFC decided to debit my account a week earlier without informing me, and when i called i couldn't get an answer instead i was told to reverse the debit order on my side. I have been their loyal customer for almost six years and i have never even skipped my payments. I asked to speak to the manger and i was put on hold for 15 minutes eventually i spoke to the lady by the name of Lydia Oruche who also didn't help much.