some reasons for rejection can include : -lrb- a -rrb- we are unable to supply you with the service , for example because that item is no longer available or because of an error in the price at the point of sale ; -lrb- b -rrb- you do not live in a country or region from which the services may be purchased ; or -lrb- c -rrb- you order more than the permitted maximum number of services .