Two years after a khula' took place between my husband and myself, he denies it.

Answer

Sister, you know the truth. It is between you and Allah Ta'ala, and even your ex-husband knows the reality. As long as you had given the true picture and correct information, you need not worry. Your Khula is valid on the basis of what you have explained to us in your letter at the time when we had ratified the validity of the Khula'. Now when you are sure that you had said only the truth, then you need not worry because your Nikah has ended with the Khula'. As such you are free to marry any other person.