From the link off post 1, you will get:
10,000 2,000 +600 2,600
20,000 5,000 +1,500 6,500
30,000 10,000 +3,000 13,000
70,000 25,000 +7,500 32,500
140,000 50,000 +15,000 65,000
So 270K will be 140K + 70K + 30K + 30K and hence, 65K + 32.5K + 13K + 13K = 123.5 AA... so you trade the 7-nights cert for 3.5K AA
