When my daughter took her N-reg Fiesta to university I put an extra gloss protection on the bonnet expecting her (correctly!) to never wash the car. She is now home for the summer and the bonnet is a mess! The protection has blistered and is gradually flaking off. How do I remove it and start again? Or am I looking at a complete respray job. I have tried contacting the extra gloss manufacturer but they don't seem interested.