From an Aug 21 email to the Diamond Desk (my question concerned points/money stays as I was a tad unsure) -
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Dear ***,
Thank you for your inquiry regarding your reward stay question. We appreciate you taking the time to contact us.
Reward stays are qualified stays and do give you stay and night credit. This also goes for points and money reward stays.
If there is anything else we can assist you with, please do not hesitate to contact us.