Join Date: Sep 2002
Location: Between AUS, EWR, and YTO In a little twisty maze of airline seats, all alike.. but I wanna go home with the armadillo
Programs: CO, NW, & UA forum moderator emeritus. Eurobonus Millionaire
Posts: 38,516
The bonuses don't multiply each other. They work separately off of the original base amount of dollars spent. I've certainly gotten multiple such bonuses. So, if you are Diamond and choose the HH points and HH points option, have the double Amex bonus, a double points rate, and are enrolled in the Q406 double points promo you get the following for every $ spent:
10 points -- Standard HH earning
5 points -- Diamond VIP 50% bonus
5 points -- HH points and points bonus in lieu of airline miles
10 points -- Amex double points
10 points -- Double points bonus from rate
10 points -- Double points bonus Q406
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50 points total