Yes, do check your credits remaining after each meal. Le Cellier charged me three credits instead of two for me and my son and when we went for Breakfast at OHanas, I discovered this when the waitress said I only had one TS credit left. Took me 45 minutes to get it straightened out at Guest Services. Luckily, I had the Le Cellier receipt with me, so they could plainly see we got two of everything, not 3. If you see the mistake when it happens, it would be easier to correct.
Marsha