Because these registries are private, different companies could "sell" the same star to multiple people.
If you simply want to find a star to dedicate to someone without the paperwork, you can use free tools like Stellarium or Google Sky to pick a coordinate and "claim" it in your own heart. how to buy your own star
Select a reputable commercial registry. Popular options include the International Star Registry (ISR) , which has been operating since 1979, Star Registration , or Star Name Registry. Because these registries are private
Access to an to help you locate the star in the night sky. Important Realities which has been operating since 1979