Newbie here, not sure if this is the right forum so forgive me if it is misplaced.

The restaurants.com offer seems pretty lucrative, 18 miles per dollar spent. I was wondering if it is possible to recycle this using gift cards and get more out of it. Here is what I am thinking, I'm wondering if anyone has any insight.

1. Buy $100 gift cards for $40 (netting 720 miles)
2. Use $100 gift card to buy 2 $50 cards (netting 1800 miles?)
3. Use 2 $50 cards to buy 4 $25 cards (netting 1800 miles?)

So you'd 4320 miles from $40, about ~1cpm, plus 4 $25 gift cards. Does anyone know if this would work?