Hello! The Taken King and Collector's Edition content does not upgrade for free to the Xbox One but Expansions 1 & 2 will. Refunds will have to be taken up with the retailer you purchased the game from.
https://www.bungie.net/en/Help/Article/12233
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Edited by Lunar Knightess: 4/28/2016 2:17:29 AMI bought it online from the Destiny site. It went through Microsoft. I have a copy of that bank statement that shows the purchase on 9/11/15.