Hi @calsprin and welcome to the Community! :) Spotify Premium For Family only allows switching to a new Family plan once every 12 months. If you were previously on a plan and the 12 months hasn't passed this may be why you are receiving the error. I have copied their FAQ on plan joining below. Hope this helps! :)
Join an existing Premium for Family plan
To join an existing Premium for Family plan, you need to reside at the same physical address as the plan’s owner (the person who subscribed to the plan).
All members have their own personal Premium account (so you don’t need to worry about asking the plan’s owner for their username and password).
If you don't have an account yet, you’re given the option to create one as you join. If you do, and already have Premium, future payments switch to the plan owner (and any Premium time remaining from previous payments will resume when you leave the family plan).
Note: If you're subscribed to Spotify Premium through a third party, e.g. your mobile provider, you need to cancel your subscription with them to join Premium for Family.
Have the owner invite you to their plan.
You'll receive an email with a link to join. Open and click ACCEPT INVITATION. You're redirected to your account page, where you'll see a confirmation screen. Note: If you're not already logged in or don't have an account yet, you'll be asked to log in or sign up before seeing the confirmation.
Enter your details and click SUBMIT to join the Premium for Family plan.
Here are a few things to keep in mind:
You can only switch from one Family plan to another once every 12 months.
You can’t combine it with any trials, or offers such as the student discount.
Bethany_DawnRock Star 7
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