| 1.4.8 | Steering of payment options in checkout module |
| 1.4.9 | Enable Clear Tariff Structure |
| 6.6.2 | Payment method determination for given user and service. |
| 6.6.3 | Charging of composite service. |
| Above: filter by 'billing' using Keywords field. Below: filter by 'billing' using other requirements fields. | |
| 6.6.1 | Charging support of the SPICE services. |
| 7.2.1 | Content purchase and access |