-Returns the option value for the given name and the currency of this customer
-(see L<FS::part_pkg_currency>). If this customer has no currency, returns
-the regular option value for the given name (see L<FS::part_pkg_option>).
+Returns a two item list consisting of the currency of this customer, if any,
+and a value for the provided option. If the customer has a currency, the value
+is the option value the given name and the currency (see
+L<FS::part_pkg_currency>). Otherwise, if the customer has no currency, is the
+regular option value for the given name (see L<FS::part_pkg_option>).