thats like at lowes when they ask me for my home phone number when i buy a light bulb.. its big brother out to get us.
sounds like theyare just covering their ass, every stihl catalog has in small print next to every bar and chain and saw "green label bar and chains recommended on all saws"
I say I don't have a phone and only use Skype and that stumps them. If they ask for an email address I make up something like [email protected]