Thank you, fliesdelta, for the info on Citi.

Thank you, mia, for the reminder about Chase. I stopped checking because the date seemed constant, which is even better than providing the next closing date online. It's good to know the limitation on a new account or an account with a changed cycle period. (So far, I have not asked for a cycle period to be changed, and I'll probably forget your warning by the time I do.)