Originally Posted by
SuperG1955
From AMEX T&C's (Bolding mine)
Eligible Purchases means purchases for goods and services minus returns and other credits. Eligible Purchases do NOT include fees, interest charges, balance transfers, cash advances, purchases of travelers' checks, purchases or reloading of prepaid cards, or purchases of other cash equivalents
Originally Posted by
WWads
Amex doesn’t really enforce those T&C on the Delta cards. You’re probably fine.
Yep, especially since this is co-branded card. It is usually up to the cobrand to tell the issuer if they want to enforce or not, but they never do. You only need to look at how long the SPG gravy train that lasted all these year without any issues. Aside from the signup bonus, don't think it costs Amex anything for the milles afterwards.
Only thing to worry about is making sure you do organic spend for the signup bonus, then feel free to go crazy with MS after hitting the min spend.