For those still waiting for the Europe promotion over summer, mine finally all posted! Here is how I got there.
1. I had three eligible round trips, only one was automatically posted (qualified for 400 points), I waited until the time I can request flight credit to submit the two missing ones.
2. At the meantime, there was one 1600 points posted (weird because the only flight I had on record is only eligible for 400)
3. I waited until the two missing trips were posted to contact CS via email summarizing the missing points (2000 total)
3. CS informed me that they are processing another batch of BA promotion and asked me to be patient.
4. Waited another statement without any points. Contacted CS again, she agreed to post the missing points manually.
5. The missing points showed up in this statement (yay!)