Contact the seller by email and/or phone.
It's been three weeks since I sent PRBullet's Cecil Epp a postal money order for four packs of his bullets. Being it's an international transaction (Canada-Michigan), I'll be patient for another week.
I tried to be sneaky and not place the order on my Visa. Don't want the wifey to know about my growing stash of bullets or my hush money. If she finds out, I'm dead.