Jiko Wine Tasting / Touring Plans Reservation Finder Question

Okay, so my wife and I are heading to WDW the week of Dec 2nd and as usual … waited until the last minute to go to the Jiko Wine Tasting event (which is only held once a week on Wednesdays) and at this late date has no availability. No big surprise there!!. Sooo, I tried TP’s reservation finder to see if I could luck into an opening. But alas, it does not only show the ability to find reservations for this particular event, only the ability to look for reservations for Jiko’s regular restaurant. I called a WDW reservations number directly, but they said the best I could do was check online daily to see if anything opened up. Are there any other ways to snag a reservation for a unique event like this that I ought to try??? Thanks.