Under the "Android Billing API Library" section, there are multiple instances of the Apache 2.0 license text that don't include the appendix (see the bottom of https://www.apache.org/licenses/LICENSE-2.0.txt for the appendix text).

In contrast, attributions of other libraries (that are licensed under Apache 2.0) do include the appendix.

A customer has requested that the attributions document be amended so that the appendix is included with all copies of the Apache 2.0 license text.