Hi -- As usual when you get no joy from the dealers go over their heads and contact customer services at Ford UK, you will find they are more willing to help keep customers satisfied, especially as it's still under warranty.
For any customer assistance on your existing product or service provided by Ford Motor Company, please contact The Customer Relationship Centre on:
Telephone: 0845 841 1111
Or by post at:
Ford Customer Relationship Centre
PO Box 4430
Coventry
CV3 9BH