So I spoke with three different CK agents - all provided the same response - nothing available. One even escalated it and asked me to send in screen shots. So HUCA didn't work.
I've engaged the twitter social media team, and they've agreed to pass it to IT without admitting there is a problem. I asked how I could track the issue so I can understand what the issue is and pretty much got a "don't DM us we'll DM you" response.
I might try the CK desk again and escalate to a manager, but at this point I'm tipping at a windmill. There's clearly a bug (almost bait and switch since the site says you can use a SWU and then after you book you find out - nope no can do). I'm surprised and not surprised that AA doesn't seem to care that they're misleading or lying to customers.