It’s been showing up in the app daily, and it dies stack. But it seems that for a stay of n nights, the credit is for n-1 days, which makes sense. We check out today, and seems not there. So 3 night credits for a 4 night stay since they do have to clean today.
Cheers.
Ahh, that is a great clarification. Explains why I only got $10 for a 2 night stay.