A method comprising receiving a billing request from a trusted service, the billing request corresponding to a third-party transaction between the trusted service and a client device of a carrier network, wherein the third-party transaction includes a purchased item purchased by the client device; communicating the billing request including billing information to a wireless subscriber billing system; receiving a validation response to the billing request from the wireless subscriber billing system; communicating the validation response to the trusted service; adding the purchased item corresponding to the billing request to a subscriber identification information-directed (SID-directed) group of catalog items selected from a main catalog based on a subscriber identification information (SID) corresponding to the client device; and presenting the SID-directed group including the purchase item to the client device as well as a corresponding system.