Walmart wouldn't let me buy a visa GC at self checkout today. I was scanning the other items when someone ran over and said I had to remove the GC and go over to Customer Service to buy it. I finished paying for my other stuff, but the line at CS was too long to bother, so I don't know if there would have been other restrictions. Also don't know if I could have just gone thru a regular checkout instead. This is new so maybe they are cracking down?