I logged in before 7 AM Central time this AM (Platinum Day) and tried to modify my OBB for a particular 2020 sailing and had error messages (no matter which browser I used) for an hour and then finally was able to modify my OBB to the sailing I was wanting...so don't count on being able to get what you want via online w/o any issues. I called in and got into the hold queue shortly after 7 AM Central and was told the hold time was 25 minutes. @ About 45 minutes, I was finally able to get in via the website, so once I knew I was going to be able to modify it that way, I hung up. Very disappointing b/c the Cat. I wanted was no longer available for my sailing.