So I woke up to good news. I just got another 4 stay/10 elite credit card nights in my account. Already received 10 nights earlier this year. The Best Way to Start 2018! #SPG #Amex
This is interesting; SPG/Amex must really love their Starguy
Update: January 29, 2018
Marriott/SPG removed the extra credit card nights, with no follow-up email explaining the error.