Well, I did not get an H-3 precisely because it did not have AI and that was only promised as a future feature. You just can't rely on website advertising (yes AI was advertised as an upcoming feature on the website) and internet forum posts when making a decision like that. Honestly, buying the computer for that purpose is just not a good decision if all you have to go on are expectations set out in ads and forum posts by a distributor, which have no binding affect on the manufacturer or anyone else.
Subgravity is the distributor. Sea Bear is the manufacturer. Once Scubapro bought Sea Bear the AI was, obviously, put on hold if not eliminated. This is not Subgravity's fault, as they are in the middle and probably relied on Sea Bear's intent before the Scubapro acquisition. Awkward for them, to be sure, but I see nothing nefarious about it.
However, Subgravity also needs to come clean about what happened. I don'[t think anyone is owed a refund, though. You knew when you bought it that AI was not on it, and was a future expectation only.