12-Pack 12-Oz Diet Coke Soda 3 for $13.20 w/ Subscribe & Save

Get three cases of 12 cans of Diet Coke for $11.98 on Amazon with the 'Buy 3, Save 40%' promotion and an additional 10% discount through Subscribe & Save. The grand total is $12.64. Available at: https://www.amazon.com/dp/B000T9WLUY