unable to join family plan

[VIDEODROME_]

Hi everyone,
I just changed my spotify premium to spotify family so my family members can use it too.
Well when I send invite to my brother he is unable to join. I have no idea why, i cheched if he is writing the adress right and he is, so why he can't join?

[OneByBoo]

Hey there @VIDEODROME_,

A few things needed to be checked for a Family Plan to work properly:

- All members should listed under the same phyiscal adress.

- All Memebers must have their own premium accounts

If the two terms are already applied, please try and send the invite using an incognito page or a different browser.

Let me know if you need further help 😃

[VIDEODROME_]

We listed the same adress. 
My dad did not have premium but spotify family is working for him.