KK and M

So I decided to take over Kevin's CVS Extra Care Card. My first transaction was this:
1 OneTouch Ultra Mini blood glucose monitoring system $19.99
I had a $20 off coupon for this item so I received it for free. When my receipt printed out there was a $10 extra care buck! I knew that it would print out that's why I bought the glucose thing.

Then I went to a different CVS with Kevin's card and the $10 ECB. I bought:
24ct Advil PM $4.99
Venus Breeze Razor $8.99
OneTouch Ultra Mini $19.99
1/2 Gallon of whole milk $2.19

Coupons I had:
$19.99 Ultra Mini
$2 Advil PM
$2 Venus Breeze
$10 ECB

I spent out of pocket (OOP): $1.18

At the end of the receipt I received:
$5 Extra Care Buck (ECB)
$4.99 ECB
$10 ECB

They actually paid me almost $20 for buying that stuff!!!!!!