Highly recommend, Easy How to Use...
I went to the website on the back of the card to register it & changed PIN; instead of the website on the insert leaflet which is different.  The insert leaflet does state the you can use it to buy gas but must pay inside the store with cashier.  And, you have to register it with your name & address or else merchants & service providers cannot verify it's you (or any person) during processing of transactions & therefore may be denied.  They are already activated upon delivery.
Rating: 5 stars