Yeah, I had that issue with mine. I was super excited about it, but then I won tickets to Gamescom, and at that point, release date was September (so just after I'd return from Gamescom), so instead of keeping money for REX, I thought "fuck it" and cancelled REX, lost my ?30 deposit, and used the money as spending money for Gamescom
Kinda gutted that I don't have a REX on the way now, but I don't regret having spending money for Gamescom xx