Same here, I still play Destiny 2, bought before Free to Play (bought two expansions) Wanted to Play the first one, so i bought a PS3 and Destiny the Taken King Legendary Edition. To my surprise the codes for the expansions inside the box had an expiration date. Like Charcoal said and many ppl in this forum, outside of the box theres no warning, no indication that the codes have an expiration date. The Box states that it contains all expansions, so in legal terms the company has to provide what is advertised. Actually Bungie and Activision have they names on the product box, so they are jointly and severally liable. (i'm a Lawyer so i known what im talking about.) To a company like Bungie, give codes for people that can prove that their codes where never used, will cost almost nothing, its an old dying game, but for us, players that put money in their games, would mean a lot.

The game code you have that is expired needs to be re-issued or refunded by the merchant. Bungie is the developer for the game but they do not sell the game, that is from 3rd party retailers (Walmart, Amazon, Gamestop, Xbox Marketplace, etc).