I saw on TheVerge today that you can download a new app called Miles. When you sign up they give you 2,000 miles which you can then redeem for various $5.00 gift cards and other rewards.
https://www.theverge.co
It’s up to you if you wish to continue to use the app, but $5.00 is $5.00.
https://itunes.apple.co
BTW, I just redeemed my 2,000 miles and received my $5.00 Amazon gift card instantly in the app.