Unfortunately, no one is going to want to take responsibility. But it is probably poor surface prep, as stated by Novaking. You'll need to get the dealer involved, but don't rely on them. Keep after the manufacturer, as a lot of questions and take notes. i.e., who manufacturers the film, who responsible for the prep and application of the film? How is it dried and or cured? What type of failures do they have on record? Most of these questions they will not answer directly, but the squeaky wheel will get greased. If you can, use info from one manufacturer and take it to the other. The customers who sound the most educated and are professional in their arguments have better outcomes. Persistence is key, I work as a coatings consultant and specialist, guns aren't part of my trade. Nor are these types of films, but problems with any coating are in the prep work or lack there of 99% of the time. Furthermore the use of a coating that will react with solvents in this application should be unacceptable to Benelli.