I usually book the UA code share #, b/c I've had troubles with .bomb booking an itinerary made up completely of LH. If I use LH flight #'s, an error usually comes up asking to call customer relations. When I switch my flights to the UA codeshare #, I'm able to purchase the ticket and collect the extra EQM's using my UA visa. I've never had any troubles with EQM or RDM posting after a flight with UA codeshare #