Same issue with me, 15 and not 30. I'll probably reach out to Marriott if I don't see the other 15 by February 1. There's also a matter of the free night certificates associated with the cards which if I look at my history, those posted around Feb 1 last year.

EDIT: Was just looking at the terms of the Bonvoy Business Amex and it reads as follows: "On or before March 1 of each subsequent calendar year, the 15 Elite Night Credits will be credited to your Marriott Bonvoy Member Account operated by Marriott International, Inc., in accordance with Marriott Bonvoy terms and conditions, as long as your Card Account is open as of December 31 of the prior calendar year." so maybe I'll wait until March 1 to reach out if I haven't seen them post. I doubt I hit 50 nights before July anyway so there's no rush for me. Would like to get those SNAs annual choice benefit before my Europe trip in late July, ideally.