Almost 4 years ago, a user named ShinyMegaGardevoir scammed me out of a very rare Pokémon. Part of the trade was an agreement not to re-trade. A month later I see the same pokemon I traded her up in GTS. I confronted them about it, and they said they weren't actualy going to trade it, and that they would leave the trade up for a "report". Their account was later locked. Permanently. To this day I have not gotten my Pokémon back. I ended up quitting the game for a while because of this interaction. I asked moderators if their was any way I could get it back, and they said no. Now, a year later I still want my Pokémon back.

The Pokémon was a shiny Polestar. The hunt cost me 16,000 nuggets in the event store, and ShinyMegaGardevoir tricked me into thinking it was ok to trade it to her for 1.5 million pd. Link to Pokémon below.