Agreed Amazon is great for everything. When you do order promix, it will come just as a bale, but once you do, it will be great for a long time. Mephisto has made a really good super soil mix for americans that allows them to just fill their pot half way with that and then the other half with your normal soil/promix/etc and just let it go.
@Bl4ckV1per5 : Have you considered the papertowel method. I have a 100% germination rate with the papertowel method. it's possible the seeds are still good. If you don't see any crack in the seed its possible its still good. even if not, its still possible it's good. Why not try the paper towel method just to see if it works.
What else can I help you with? I'm no pro, but i have gone through a lot of these things myself.