The point of companies having their own service like this, is so that the kickback to the charge company goes to them instead. So instead of 1% of all mobile

The point of companies having their own service like this, is so that the kickback to the charge company goes to them instead. So instead of 1% of all mobile purchases going to Apple, it goes to walmart instead. With the scale of business Walmart had that can be upwards of a billion dollars a year.