One of my papers was accepted at a regional conference. The conference organizers wanted the presenters to register to the conference much more in advance than common. I wrote the organization chair and repeatedly expressed my sincerest intention to attend the conference. But with the conference being so far away and the registration being actually quite hefty, I asked the organizer about the cancellation policy, since there was none listed on their website. I also have a family situation that makes it hard for me to plan so far in advance, but for my career it would be important to present at conferences like this one. As a response, I received an email in which the conference organization chair basically retracted my conference acceptance. I am a little bit shocked, since I really wanted to attend the conference and thought I had made that clear in my email.
What would be the professional way to react? Do I just accept the conference chair's decision to retract my acceptance and walk away? Or do I email the chair, explain that I really want to attend and submit my registration fee?