Old Navy: $15 off $50 In-Store Purchase Printable

Old Navy is offering up a $15 off coupon for any $50 or more in-store purchase. This offer is valid through 6/19 when you use one of the credit cards listed below. This coupon can be shown on your mobile device if you do not want to print it out.
 
From now until 6/19, save $15* when you spend $50 or more with your Old Navy Card, GapCard or BananaCard, in-store only.

Thanks MojoSavings