The club can't afford to lose a player of his potential, so I doubt they would say yes to crumbs...
I don't think they have the choice. If they say no to whatever Bayern offers, Singh's agents go to the (already Nix-sceptical) media with story of "WELLY NIX RUINS DREAMS OF YOUNG KIWI FOR MONEY". Krishna is a grown-up who couldn't get that much sympathy.