1GB Tracfone data plus 500MB free with promo code – $10

Go to Tracfone website and buy 1GB of data online for your smartphone. Use promo code 66975 to get 500MB free data. Make sure it says that the promo code was applied before you complete the purchase.
As usual with Tracfone, it may be awhile until your added data shows up in your balance.
UPDATE: I placed two separate orders with the same phone for 1GB with the promo code and got 1.5GB for each order so the promo code should work at least twice.
https://www.tracfone.com/