I'm sorry,
You are going to have to purchase The Taken King DLC again at normal price. TTK is not eligible for the Destiny Digital Upgrade Program like "The Dark Below" and "House of Wolves" are. You can find more info on it here...
https://www.bungie.net/en/Help/Article/12122
English
-
Oh OK, Thank you very much for the help. :)
-
No problem. Happy I could help!