I'm sorry this happened and I feel ya, Ive lost many of my fav characters and have gotten repeat characters! (Ugh, repeat Blazes just like The Speedstar 7) Do you press the wheel while it spins? I used to and it ALWAYS landed on the bottom eggs, I decided to just let the wheel spin on its own lately and been having better luck...I think. Its like the wheel punishes you now if you try to get it to land where you want like in the BETA version, now that wheel was fair and timing based! This new wheel is totally rigged, laggy and 100% random, and hates when you interfere!
My best advice is to treat this game as a pile of junk which SEGA will pull the plug one day and you wont keep your characters or anything you spend hours on (I just do the daily challenge per day) so never waste money on this game or any online only game! God... I hate online only games! I want to keep my characters and items even after the stupid online servers die (You literally waste hours of you life and money for NOTHING), I miss local 2-4 player games. Gamecube's PSO Ep1 and 2 was an example of a great game with Online plus Offline, plus Local! Too bad the GC memory cards got corrupted easy but that was Nintendo's fault back then. :/