How do you know he doesn't have the cash to pay for it and is just going to pay it all off when the bill comes? For the deal to work, you have to use the credit card on the purchase.
I love Meijer's deals. I got my launch Xbone for $400 because every once in a while, they have save $20 on a $100 purchase coupons. I bought 5 $100 Amazon cards for a total of $400.