Hi guys! Thank you all for replying!
I won't be ordering anything from that site or any site like that again. I didn't know there was a list of authorized sellers. I've learned my lesson.
Also it is not in the InstalledWorlds folder that BB is listed as an Object, it is in the Launcher. However after I did install the world I check the InstalledWorlds folder and it is a .world file.
I guess I was scared that I didn't get a legit code, but if EA says it is, and since you guys say BB was listed as an Object in the Launcher, and the other weird things about BB, I have nothing to worry about.
I feel better guys, thank you all so much for replying! You don't know how much it means to me. <3
