My wife is a builder and she is no stranger to bad plans.
IMHO
If you were never supplied with the right plan they pay. You fulfilled your contract.
If this was a mastered plan with a change order that you missed you pay. (some or all)
I think most of these problems could be fixed with a decent computer that only spits out the "right" plan and not some generic master with a dozen change order sheets.
But that may just be me.
I am amazed at how badly national corporate builders handle their plans.
