I’d say accept the 3 and move on, it sucks you won’t get the CC but no point in harping over it.
Hopefully you have the same form as the one CB released so that the links below may be of some assistance in clearing things up.
http://www.askmrcalculus.com/AP2015.html
http://rowdy.msudenver.edu/~talmanl/PDFs/APCalculus/BC2015.pdf