Update on my meeting status.
So far i completed all 8 meetings from 4th - 7th Aug. Now its just waiting for them to be posted. The various properties confirmed via email that they to do so between 7 - 10 days after the event. (With the exception of 1 property who took my money but refused crediting the points before i did not show up)
My next and main worry would be hoping they can be posted on or before 17th Aug. Who knows what could happen if gets posted after 18th!
Presuming the nights are needed to meet a legacy goal, you have until the end of the year for all that to come together. However, I suspect once they see the issue is on their side, they should be able to fix any delayed status changes. To be safe, I would suggest defer merging your accounts until it's straightened out.