I Earned Prestige and selected benefites late 2010 but never got them untill january 3rd, when I also earned Elite and selected benefites. And here comes the claw...

Jan 3 2011 Mileage Deduction 1,500 MILES

Jan 3 2011 ELITE BONUS 1,000 STATUS MILES - AIR CANADA PROMOTION 1,000

Jan 3 2011 ELITE BONUS 2,000 STATUS MILES - AIR CANADA PROMOTION 2,000

Jan 1 2011 PRESTIGE BONUS 1,500 SMILES - AIR CANADA PROMOTION 1,500