Bests & Worsts Reviews from Amazon

At first coins were great. They're cheaper than paying for the in game apps via iTunes. I even bought a low end kindle fire just to be able to purchase the coins easier. However, the kindle does not play well with this game (Game of War: Fire Age) and several times while I was attempting to make an in game purchase with coins, the coins got deducted, but the items I purchased never appeared. The last time I purchased 10,000 coins, I only was able to get 1,999 coins worth. I lost two other purchase of 3,999 and 1,999 coins each. Amazon refused to credit me back the coins and the developer refused to credit me the items. Amazon said I'd gotten too many credits. I know I'm not the only one that has had this problem. I don't submit fraudulent claims. I've attempted three times to contact Amazon and have received no reply back. So, be very careful when you use coins for purchases and know you may lose your money in the process and have nothing to show for it and no support from Amazon or the game developer. I won't be purchasing coins any more. And as a long time Amazon customer, I'm extremely disappointed in the lack of customer service here.