Mailer and/or email
Designated card
Two phases
Get 100k points per phase

Largest targeted spend I know 36k
Spend $36k/phase
Get: 136,000 points incl basic (Instant Travel Club and/or online 3x is extra)
Earn rate: 3.97/AM

Divide by 1.875 if you have VI and that was targeted: $2.12/AM

PS Apple season soon but I strongly advise against using targeted promo for iPhone 8 - cos no idea when the buggers will ship (transaction date on shipping date)