you wont receive them. You will email, and they will say "oh sorry royal mail lost them let us send them again." Then you won't recieve them you will complain and say "I don't want them any way". A week later you will recieve an email saying "we are giving you a complimentary 16t sprocket for all your previous problems... " (repeat)
perhaps the item will get more and more valuable each time
you wont receive them. You will email, and they will say "oh sorry royal mail lost them let us send them again." Then you won't recieve them you will complain and say "I don't want them any way". A week later you will recieve an email saying "we are giving you a complimentary 16t sprocket for all your previous problems... " (repeat)
perhaps the item will get more and more valuable each time