If you know the original email used to purchase the key do a quick search for the original email. Some good search words would include "tony" "honor" "buddy" but use them each individually as some emails may not have multiple keywords present. If this fails try to log into the buddy auth website and locate it on there. If all else fails do a quick search of the forums for Tony the super mod! He is basically single handedly in charge of keys and can further assist you!