i personally would have them install the wire that you ordered in the first place,unless the sheetrock is already installed.
i see too many contractors use cheaper materials to increase their profits and many homeowners dont even notice,pretty s@$^y if you ask me
i would be willing to bet quite a bit that they were well aware of the ga.
im sorry if i put any doubts in your head but building a home in volves a lot and contractors will try to sneak things by you when"youre not looking"that cut their cost.
im not saying there all like that ,but there are quite a few that ive seen
sorry to go on like this but ive seen it too much
btw//good luck with the new home
