Got my card yesterday and on reading through the conditions, in the section on "How you can receive a miles boost each year", it describes a 10K MQM Miles Boost award for spending $25,000-49,999 and a 20K Miles Boost award for spending more than $50K. To the right it lists "some miles boost award restrictions" and says "You can received only one Miles boost award for each Card Account. In addition, if you have more than one Platinum Card Account linked to the same SKyMiles account, you are eligible for only one Medallion award each year."

Is this new? Does this mean that if you have a personal DL Amex platinum and a business DL Amex platinum, you cannot earn MQM mileage boosts on both cards but are limited to one 20K Miles Boost award for using these accounts? Or are they talking about multiple DL Amex platinum business cards, so that you can get 40K MQM if you spend $50K on each of the business and personal cards?