Sorry to hear that, sadly it is very common to find things like this and always need to be aware of these situations. Amazon, Temu, and second hand apps tend to have many models they can’t sell.
https://forum.bambulab.com/t/someone-selling-my-exclusive-model/259099
https://forum.bambulab.com/t/you-need-to-check-out-etsy-regularly/139641/136?u=mprints