Wow how confusing is this point allocation (or is it just me

)
Take two! Just got my second statement, still a little

I am however very happy to report that on this occasion I can account for the 0.5 points per $1 spent on MC. In addition, it appears they have credited the 1.5 points per $1 spent on AE (which I understood would be the case from reading through previous posts). The extra points credited - against MC - a few days later don't add up however. I was expecting 3 points per $1 spend on AE as per the promo.
Here's my points wrap up from my QFF activity statement:
Here's my spend:
MC spend for the month = $365.59 = 183 pts as per activity statement above.
AE spend for the month = $4,504.32
@1.5 per $1 = 6,757 pts as per above.
But where's the additional 1.5?
What the heck is the random figure of 2,583...?
What am I missing...?
Thoughts anyone?