Most garcinias aren't in season at the moment. Keep monitoring this page though, when they come up they generally sell out pretty quickly. As for shipping, I use just famp, not wet, ground peat for recalcitrant seeds. Luc always uses vermiculite when he ships to me. Others have used coir, sawdust, all sorts of things. Every time I've gotten seed in wet paper and they've been in the mail for longer than a couple days they've general been rotting. I never soak seeds except some guavas to help break dormancy.