I was checking out the expansions in the Eververse tab, and out of curiosity, I wanted to see the price of the Ultimate Edition. I recently bought the base Year of Prophecy while it was on sale last month and wanted to see if it would discount the Ultimate Edition to an unpgrade pack or if it would want me to still pay full price. I clicked the "Get it Now" button to take me to the store, but nothing happened. After looking around and waiting about 15 seconds to see if it was just loading, I clicked it again, and instead of bringing me to the verification screen, showing me the price, it brought me to the "Thanks for your purchase" screen. It never even showed me the price. Confused, I had to go and check my Microsoft and bank accounts, and sure enough, I was charged for purchasing the pack. I requested a refund, and thankfully the refund was accepted, but this is a pretty serious error I feel should be looked into and addressed. I was playing on Xbox, if that info matters.