it seems to me that you werent comfortable with using ebay. a lot of people of this forum will not touch the place, but i use it all the time without any issues. keep to some simple rules and you are covered. you bought a watch with box, papers and all other documentation so i was puzzled when i read the post. you can email UN and they will happily tell you all about the watch and register it in your name. i did that to check out my Freak before i bought it.
welcome to the forum by the way.
Graham