Good Morning, all.
For those of you on Insiders, I apologize in advance for the repeat message.
I just checked back with our Program Infrastructure team, and, in fact, the changes began to take place March 8 as announced. It turns out these changes will not be 100% completed until Friday, March 12 - mostly related to systems/processing. Please contact customer care (as noted above) if your reservation may be affected.
Thanks all for your patience and understanding.
Regards,
Andrew