Unless you buy them online. Then you get the 5% off the whole thing.On Saturday I bought $150 worth of Disney GC's from Target. I used a $100 Target Gift Card I received from credit card points. You can absolutely not only still get 5% off of Disney Cards with a Red Card but you can also use a Target Gift Card to purchase them. However, I have noticed if you do a split purchase, you will only receive the 5% off of the part actually purchased with the Red Card - meaning I only received $2.50 off instead of $7.50.