So Vauxhall Finance continue to push MG.
Unfortunately MG’s response currently is although the surface corrosions (let face it that a 8 month old car sold not have in the 1st place) is unsightly left untreated it should not cause perforation of the panel with in the warranty period.
So clearly they only worried about their warranty period and nothing else. What they call surface rust is around where 2 joint come together, which means the rust will be in the joint. Without cutting this away you will never get rid of the rust in the joint.
Vauxhall Finance have another conference call booked with the Head of Sales at MG and Technical After Sales Manager. Lets see if this can be resolved nicely, although I am not holding out a lot of hope judging by their current responses.