A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,417
0) How do you calculate 38,000 miles? have you checked what your AF fare class earns on DL? Do you have elite status with DL?
1) You can join FB but you can't credit your trip to both programs.
2) Sometimes AF does this but I don't think it's as early as T - 7. IIRC there's a thread about the process in the AF forum.