@Simon Will do!
@slangivar Thanks! That is another great point. I will reach out to the other companies listed to make sure they are aware.
To make this worse, I asked Vonado if their MOC kits are genuine Lego and they confirmed they are not. That is not clearly stated on the product pages. The prices are in line with genuine Lego parts, so they're also ripping off their customers severely. I'm afraid bad experiences like this might dissuade people from buying legitimate MOC plans and kits from reputable places like Rebrickable.