DFromATX

Hello, we are cruising on Princess Discovery to Alaska in September. We've cruised before, but this will be our first time on Princess (and to Alaska) so I am not familiar with how they work. I purchased the premier package, which includes 2 specialty dining reservations. Our cruise is all paid for and on their website it says we can start reserving once we are paid in full. (I've got the app on my phone - not sure how I feel about it yet. It seems kind of messy.) I found where I'm supposed to book the reservations, but when I do, it wants my credit card info. Is that normal? Or, am I trying to book too early? The rep on the phone told me I could book once on the ship by going to to guest services once we board. That seems like a hassle and kind of defeats the purpose of having the app, doesn't it? She didn't know why I couldn't book using my credit. When do most people book their dining? Do places book up fast? I hope I'm in the right place and that someone can help. I have tried calling them and doing their chat, but to be honest, they have been just as confused as me and it's been a little frustrating. I hope that's not a bad sign! Thank you!