At the top of this forum is "Cindy's Breakfast Advice and Encouragement" I followed those tips to the letter and I was very successful. The best suggestion was the using the Atomic clock.
I got through three different mornings, and I made a reservation on two of those days. (The third time was too late in the day, so I just let it go.) They did charge my credit card for each reservation. After a couple days, when I was able to decide which morning would work best for us, I called and cancelled the one I did not want. A credit was issued to my credit card.
The cm's were all very nice and enthusiastic about making the reservation(s) One told me that she has her computer set to CRT before she answers the first call of the day, because it is almost always someone trying for the coveted breakfast invitation.