Thumb Score: -2
Added this to my cart with subscribe and save and somehow showed up as $ 7.
First, added this with subscribe and save: https://slickdeals.net/f/16296952-6-1-oz-c4-original-pre-workout-powder-cherry-limeade-30-servings-10-79-w-s-s-free-s-h-w-prime-or-25
Then added the 60 servings one from this post, subscribe and save.
Then deleted the first item (30 servings) and the 60 servings one came out to be $ 7. There were two S&S promotions deducted from the cart. Good luck!