February 26, 2014 at 12:52 /
1. https://support.authorize.net/authkb/index?page=content&id=A569&actp=LIST
Check the first point. I’ve checked if anything changed on authorize, but it seems the script is still actual.
2. Yes, it updates the paid price.
3. You can use the guest control panel to let them pay afterwards.
4. It checks at the availability at 12:00. What’s the time you want it to check?
Regards