Abstract: A method of operating a charging system (20) comprises acts of defining a pool of plural asset accounts (24) and classifying the asset accounts of the account pool according to one or more account type classifications; and storing at least one appropriate account type classification for a product. The method further comprises, upon receiving an indication of a service request (6-1) involving the product, obtaining at least one appropriate account type classification for the product; and selecting from the pool of plural asset accounts (24) one or more of the asset accounts belonging to the at least one appropriate account type classification to charge (e.g., reserve/deduct) for the service request involving the product.

Abstract: A prepaid mobile station (30) comprises a communications unit (49) and a display unit (52). The communications unit (49) is configured to participate in transmission of data over a radio interface (32) on a prepaid account basis. The display unit is configured to provide a unique prepaid account graphical depictor (54, 54?). The prepaid account graphical depictor (54, 54?) provides a visual indication of a prepaid account balance value for a prepaid account in scaled relation to a boundary value. The boundary value is other than and less than a maximum allowed prepaid account value and can be, for example, a latest refill value for the prepaid account; an account status/balance at refill occasion value for the prepaid account; or a configured value for the prepaid account.