Dear Mr. Bogdanovici Sorry about it. The gold coin was out of stock. we probably forgot to list it out after selling in our shop in Berlin. We offered you to make a replacement order. You choosed a much more expensive coin. We wrote you that you would have to pay the price difference in this case. You Rejected it. We dont sell coins only by gold weight, we sell collectors coins. Gold value and collectors value usually are different. Same weight coins must not have the same selling price. If you would have chosen something for the same price in exchange we would naturally have sent you a replacement coin. We refunded you the buying price of the out of stock coin immediately. As I said in thr beginning I am sorry about our mistake.