With the full understanding that YMMV:
From the HiltonHHonors T's and C's:
11. No point or stay credit, airline frequent flyer mileage credit or credit toward tier status will be awarded for wholesale/tour operator packages, contracted airline crew rates, travel industry rates (including but not limited to travel agent discount rates), complimentary or barter rooms, stays on NET Group, Series Group or IT Group rates, contracted Entertainment or Encore rates and stays using airline percent-off award certificates. Stays that are booked via third party websites other than the websites of Hilton HHonors airline partners are not Eligible Stays irrespective of rate paid, for the purpose of earning points, miles or stay credit toward VIP tier status. Stays booked via "opaque" channels where the brand is unknown at the time of purchase are not Eligible Stays for the purpose of earning points, miles or stay credit toward VIP tier status, or the receipt of VIP tier benefits such as upgraded accommodations / amenities or access to health clubs. No point or stay credit, airline frequent flyer mileage credit or credit toward tier status will be awarded for "no show" situations when a member has made a reservation guaranteed with a credit card but then does not check in to the hotel--irrespective of whether or not the member's credit card is charged for any portion of the reserved stay per the hotel's "no show" policy.
and
6. Qualifying stays are those at all rates except otherwise specified in item 11, below. 'Eligible folio charges' for Hilton, Conrad, Coral by Hilton, Doubletree, Embassy Suites Hotels, Hilton Garden Inn and Hilton Grand Vacations Club hotels shall mean: room rate, food and beverage, telephone, laundry, pay-per-view movies, entertainment and recreational facilities, and other incidentals charged to the Member's room. 'Eligible folio charges' for Hampton Inn, Hampton Inn & Suites and Homewood Suites by Hilton hotels mean room rate only. Dining room or other charges not billed to a Member's room during a stay will not be eligible for credit. Hilton, Conrad, Doubletree, Embassy Suites Hotels, Hampton Inn, Hampton Inn & Suites, Hilton Garden Inn, Hilton Grand Vacations Club, Homewood Suites by Hilton and Scandic hotels as well as other selected participating hotels - may omit for purposes of point accrual, incidental charges or charges to the Member's room for non-affiliated hotel entities which are not owned and/or operated by the hotel including, but not limited to, food and beverage outlets, gift shop, drugstore, clothes, gallery or specialty stores, recreational or entertainment concessions.