I had my rust fixed on my old Mk1 Focus done under warrenty, as did Dad on his Mk1.5.

Mine was on the bottom of the rear passenger door & bottom of the boot where they are sealed. Car was a '99 T & it was fixed in '05 or '06.

Dads was a ghia and it was all around the chrome plastic boot strip. Then about 18 months after it was fixed, it rusted again in the same place. Car was an '02 & was fixed orignally in about '07.

Anyway, I thought the warrenty was only 7 or 10 years not 12.