The one thing you can rely on is if you get disturbed halfway through a painting and it looks a bit naff, then someone will preserve that piece, remove it and a few months later it'll be paraded round Sotheby's by people wearing white gloves.
BanksyYou owe the companies nothing. You especially don't owe them any courtesy. They have re-arranged the world to put themselves in front of you. They never asked for your permission, don't even start asking for theirs.
Banksy