Bests & Worsts Reviews from Amazon

Rather disappointed. I went to try and buy something with my Amazon Coins to try them out (it was within the 500 coin limit), but I found out that the purchase didn't go through. It wasn't until after I clicked buy and waited for an email explaining that the sale didn't go through to find out that there was tax on the app. It wasn't shown until later bringing the total over the 500 coins. I wasn't planning on buying any coins, but even more so now that I know they hide any applicable tax the app may have until after you hit the buy button.