MFC pestering wrong person for 10 months

Every month I am being pestered for MFC wanting a certain lady to pay her car. For the past 10 months I have been telling them that cell phone numbers are recycled and this number is now a business number which belongs to a large car manufacturer, far away from their client.

However, MFC will not update their database.

WOULD YOU TRUST SUCH PEOPLE WITH YOUR BUSINESS OR CLIENTS?