Brisya

Hi all, on November 30th at about 7 pm (UTC+1) I bid on a Mageweave Bag in the auction house for 1 gold. A few minutes later, I changed my mind and bought the item for the buyout price, which was 1 gold and 20 silver. Unfortunately, I did not receive a mail containing something like "you were outbid, here is your amount (1 gold)". In the end, I payed 2 gold and 20 silver for the bag. In this a bug or am I missing anything? Kind regards, Brisya