Your case is a very delicate issue but I think all is not lost. There is a way to approach the interview and I think there is no better way than you explaining yourself why that problem arose. Why not try with this explanation:
1) When you were applying for the dv lottery, you included your wife because you have already done the traditional marriage
2) You excluded her on the forms because you're yet to officially register your marriage.
I think this explanation will be fantastic (just expand on these points).
1) When you were applying for the dv lottery, you included your wife because you have already done the traditional marriage
2) You excluded her on the forms because you're yet to officially register your marriage.
I think this explanation will be fantastic (just expand on these points).