Ravan,
Noone can say how this will go because it really depends on the elders. Truth is you should have never told your parents what you did. Once you tell people, you kind of open yourself up. But.....whats done is done, so here is my gentle advise IF you are trying to avoid the big D. If you don't care, you know what to do.
1) Your parents are going to put the org above you. Sad but true. Most of us would have done the same at one time. I personally would not tell them the truth. I would say you lied to them before. You don't live with someone. Or tell them you got married. None of anyones business. I don't know. Whatever you want to do.
2) They need 2 witnesses, and if they are going to use them, they have to be named. They cannot use "anonymous" witnesses. You always have the "right" to face your accuser. So just deny it. If nobody has your address, and you live an hour and a half away, deny it. Bothers call you, you can invite them to eet you at a starbucks 100 miles in your direction, to tell them no you don't live with anyone. Act harrassed. You haven't been to any meetings, aren't causing trouble, and don't appreciate being "policed". You know they love you and want to help you and you have their number.
3) Stay away from loaded language or direct questions like "do you want to be a JW anymore"? Answer I have been a JW all my life, I will let you guys know if I would like your help. DOn't be tricked into it, simply deny the allegations, and if they won't even provide the name of the accuser, it has no validity. Explain, you would like to be left alone, and you consider this bordering on harassment. You aren't bothering anyone, and live far away. this is causing you undue stress, and you don't appreciate it.
Anyways.....there is my 2 cents.