Not $10 per person. If you don't show for CRT, you're billed the entire amount.
Because your booking was on DDP, you did not have to pay upfront, your credit card was just used to guarantee the reservation; it was not charged at this time. Dining credits don't guarantee anything. At the time you book, you don't even have any dining credits; they don't exist until after your resort check-in.
I hope your
travel agent has you up to date on the cancellation polices for CRT, I believe it is 2 days, not one, and if you are a no-show you're billed the entire cost of the meal.