Premium for Family - subscription

[marvydc]

Hi,

I was invited to an Premium for Family Spotify account, but following process of acceptation seems not to work.

To accept an invitation:

1. Open the link you received and click ACCEPT INVITATION. 
2. You’re redirected to a new browser that contains a pre-filled token. Click REDEEM. 

I accepted the invitation, logged in to my existing Premiun account, but I cannot see the token with REDEEM.

I have existing Premium Spotify account. But It seems that I created my own Premium for Family account by accident. Is it possible to erase the maybe-existing Premium for Family to join the other one?

See attached the invitation mail and my account-subscription.

Thanks. Martin