debit order after manual payment done

<p>In the 19th Dec I made a payment into my mfc account and I get debited an amount on the 28th of Dec... I call the centre and was advised that they could not stop the debit order which I think is bull cause I pay into the mfc account every month a day before the debit order runa.. I requested a refund and to date have recieved no correspondence or refund...I think that is just perthetic </p>