This seems like a pricing error. Normally these are offered for about $4, or $1 per meal shake. Are you really charging this much for 1 4-pack, or is the description wrong and it is supposed to be 4 4-packs for 16 shakes total?
Hi there. These are being obtained from Amazon inventory so we don’t have a lot of information. Here it is on Amazon. There may be more information there.
https://www.amazon.com/dp/B0105Y1F7W
I’m seeing similar pricing elsewhere.
Nahhhhh… def a pricing error. 
SlimFast Meal Replacement Shake SlimFast Meal Replacement Shake
Or like the other guy said, if it’s 4 4packs
Interestingly enough, the MSRP on SlimFast’s own site is $10.99, and they’re on sale for $8.99 right now. If you ordered enough to get free shipping ($99.01 and Over), you’d be ahead. With just one pack though, the shipping (to me at least) is $12.94.. sheesh.
If you are really finding these for ~$1 a bottle, I’d be interested in where that is happening so I could get some as well 
I actually bought these last nite at Wally World. $9….
Five days ago, Woot had this same four pack for $3.99 with a suggested price of $8.59. Which was not the first time they’ve had them at that price. That’s the $1.00 per bottle that is being referenced above.