AirOne is ceasing operations, I think it's part of the outcome of the Alitalia-Etihad merge.
Based on the communication the company sent out, all passengers are being reprotected to AZ flights.
Considering AZ, I would not worry too much if they didn't call you yet - hey there's been the weekend in the middle too
Probably ringing the call center is a good option or you may drop a line on their Facebook site, I heard they answer quite quickly. If not with the answer, at least with some ideas of the steps to follow.