Worked fine for me
I bought two Amazon reloads back to back, and had both amounts added in less than 5 mins. It was super easy, too.  I just entered the amount I wanted, hit a couple of confirmation buttons and there it was.  I also like how it keeps my spending within my budget, once I put in the amount I know I have to spend in my Amazon account I know that's it for time being.
Rating: 5 stars