So we finally got a response from Azamara (Over three weeks) and they confirmed Chioggia. I asked about the change as our stuff we had printed from their site said Venice and they said it was due to port issues. They will provide a transfer to Venice at a cost (Someone else said $150). They are essentially dropping us 53 kilometers from where the had said and charging us to get to our destination. The previously offered excursions (printed from the site) have disappeared. They said excursions would show up again in a week or two. I asked about prices for the excursions and was told they may be adjusted.
The bottom line is they made a change and we are going to pay for it.