AUTHORIZED DEBIT ORDER BUT MFC DOES NOT DEBIT THE ACCOUNT.

I AM PAYING FOR MY CAR AND I AUTHORIZED THAT MFC TO DEBIT MY ACCOUNT EVERY MONTH AND FOE THE PAST TWO MONTHS THIS HAS NOT BEEN HAPPENING, I NEED TO CALL THEM AND FOLLOW UP LIKE IT IS MY FAULT,THEY KEEP ON TELLING ME STORIES AND ITS NOT LIKE THE HASN'T BEEN MONEY IN THE ACCOUNT, THEY KEEP MAKING ME RUN AROUND LIKE A HEADLESS CHICKEN I CANNOT KEEP CALLING THEM FOR THEM TO DO THEIR JOBS AND DEBIT MY ACCOUNT. I WANT THIS SORTED AS SOON AS POSSIBLE BECAUSE I DO NOT HAVE THE TIME TO CALL BANKS AND DO PAYMENT.