As a quick follow up to the previous SavyGamer post about EA confusing myself and their customers with contradictory communication from different channels, it looks like despite telling me that the offer for a free copy of Battlefield 3 with Mass Effect 3 preorders would be available until the 5th of March in an email, they are now telling their customers that the offer is already over via twitter.
It seems like getting a straight answer out of EA regarding Origin promotions is simply not possible.
Cheers @Jam_sponge for bringing this to my attention.