Free night certificate interesting DP: Got several certs due to $10k spending. Successfully found availability and booked two nights at the Radisson Blu Aqua Chicago. The booking confirmation shows a room rate of like ~$400, of which ~$285 was deducted by the e-cert, leaving a room rate of $115. Contacted Radisson to get an explanation, who in turn contacted the hotel.

The hotel emailed back directly, letting us know the nights should indeed be free (the e-mail says all taxes and fees covered, but I'm pretty sure we're still on the hook for the $25 destination fee), and that the reason the confirmation shows $115 per night has to do with how the hotel gets reimbursed by Radisson for the e-cert. So no need to be alarmed. I'm keeping the e-mail if/when it becomes an issue at checkout.