My father mistakenly bought the destiny 2 bundle pack on his account and not mine. The pack included foresaken, shadowkeep l, and the season pass. It didn't work at first but we figured out how to get foresaken and shadowkeep to work but season pass didn't. Now a few months later I don't have anything at all.
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Seasons are tied to accounts so they won't work through game share. The other doc's should, but it is not a Bungie feature. You will need to reach out to the platform owner for issues with that service.