The graphic shows that the three wireless services are each tracked under a balance group specific to their account. Wireless 1 is tracked under the account-level balance group for the parent account (B A1). This balance group points to the primary billing profile on BA1 (B A1-B P1).
Wireless 2 is tracked under a balance group for one child account (S A1) and Wireless 3 is tracked under a balance group for the other child account (S A2). Nonpaying /billinfo objects under the child accounts are created for the child account balance groups. The nonpaying /billinfo object for S A1 points to a second billing profile (B A1-B P2) on BA1, and the nonpaying /billinfo object for S A2 points to a third billing profile (B A1-B P3) on BA1.