Debit Order Horror

On the 22nd I called MFC requested that they debit my account early with the festive season and all trying to be a responsible client. That was done and I was told by the consultant that the next debit order will go of 28 jan as per usual. Imagine my horror when I got up to realise MFC debited my account again. Now my other debit orders must bounce because I tried to do the right thing... I'm disappointed seriously what kind of service is this. I called them and I was told it normally takes 7 days to refund but they will TRY to speed up the process. In the meantime what am I supposed to do really??? MFC u messed up don't TRY just fix it if u dont wanna loosed me as a client. I want my refund as soon as yesterday.