IGNORE, IGNORE, IGNORE. That's all you have to do Raven. If you truly do not care about your "standing" in the cult, then don't worry about it.
As others have said, do not give them any "power" over you, and to do anything to you.
You do not have to subject yourself to their inappropriate questions, their fake "concern" when really they only want to catch you, and discipline you.
If you give them ANYTHING, like your time, energy, information, you are still letting the Cult have some control over you. You do not have to do that. You are truly free from them, but only when you do not let them have any effect on your life.
I LOVE the fact that you are moving very soon. This is an awesome stroke of "luck" at this time. You basically have been ignoring them, and essentially the most they have done is leave/send you a few letters. Its really nothing if you let it continue to be nothing, by ignoring it. Once you move, now they cannot even find you, to leave a letter, or anything.
This is GREAT. You will be completely free, because you are not giving them ANY power over you. They are simply mere men, who for some reason, believe they can judge fellow humans, and they can decide someones "standing" before an Almighty God. Its absurd, really, and its all meaningless once you give them no power over you.
So far, you have, and are, doing EVERYTHING RIGHT. Please continue to ignore them, especially since you said you do not care about the outcome anyway. Since you are not giving your new address to Mom, and you are moving soon, by ignoring them still, you are very soon about to be completely free of this Cult, and these men. Congrats, and keep ignoring them, you are doing it perfect.