I needed to change my address to the owner of the premium pack so i tried, however it doesn't work when I submit the address. It's the exact same address as the owner. I also logged out of all my devices and tried resending the invitation a couple of times.
If you get an automated reply email telling you to check the Knowledgebase or the Spotify Community, you need to reply back to it, even if it's from a no-reply address. Spotify Support usually replies within 24-48 hours.
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