Another thought--since you are NOT D/F or D/A, the normal shunning rules according to the organization do NOT apply to you. You might try responding and reminding them of that. In fact, you could couch it something like they are running ahead of the chariot in treating you as if you are D/F. Isn't this [the fact you have NOT been D/F] something to leave in Jehovah's hands and trust his organization will handle it in due time (gag)? They are, in fact, acting presumptuously in treating you as if you are D/F when, in fact, you are [and here you might drum up some quasi acceptable excuse, though if it has been several years, it might be harder. Still, you could say depressed/ struggling emotionally/ confused/ taking things to Jah in prayer, etc.]
Turning the tables.