from my experience, i wouldnt say "praise"
i've probably called Xbox Customer Support about 50 times since i've had my Xbox
and not everytime, my problems were dealt with
i've had multiple scr*w ups on MS side
and A LOT of useless people trying to help me,
so usually i just ask right away if i can speak w/ a supervisor
because then things are ususally dealt with properly
"One World, One Music, One Tribe, One Dance."