Excerpts from Wyndham Rewards T&C:
Section I, paragraph 5:
...Qualifying Rates include all rates except for the following: employee/family, travel agent, group, wholesale, package transportation/crew and other special contract rates, or free night stays. Most rates available through tour operators and travel websites (excluding Wyndham Rewards.com and the Participating Hotel Chain websites) such as Priceline, Hotwire, Expedia, Travelocity, and Orbitz are wholesale rates and therefore do not qualify to earn Wyndham Rewards points, airline miles or rail points. Non-qualifying rates which are specific to Participating WH&R Properties include Wyndham Vacations inventory booked through Expedia which includes another travel component such as airfare or car rental.
Section II:
...Wyndham Rewards points, airline miles or rail points will not be awarded when a stay is associated with any non-qualifying rates. See Paragraph 5 of Section I above.