If you are in the payment screen and it glitches, it still holds it; keep refreshing and going back ; you may have to log back in and it may require you to input a code sent to your email; I saw Donald and access unavailable many times just a few days ago when booking a dessert party off peak time; took 25 mins; safari never worked (where it originally glitches), but app finally showed the time and I was able to click through and payment was auto populated (it appears in the app occasionally even though CMs can see it on my profile).