Welcome to ATP, Aimee.
Mix 3 tbls. of dish detergent in a gallon of water and liberally spray the orchid plant and media. Generally spider mites attack the underside of leaves, so be sure you cover those surfaces. You might have to spray again after 5-7 days. Do keep the plant quarantined as well. That is if you want to keep the plant. I don't know what BBS is, but you can always take the plant back to them and ask for a replacement or a refund.
Good luck.
