[AOII Angel]

I would contact the headquarters, tell them that they have made a mistake. If you never signed anything, still have your badge and never resigned, this should not be a problem. AOII has a system that allows people to apply to be reinstated even if they did voluntarily resign. I don't know how often they let former sisters come back, but your situation (if it's exactly as you've told us) sounds like the perfect reason to have this policy.