Here is the deal i bought 4 new accounts and used recruit a friend but BEFORE RAF.. (well thats what i think atleast)

When i log into my accounts it says:

You have 5 referral(s) left, and 1 friend(s) linked to your account.

I used RAF from my main account to recruit 4 new accounts so:

1 is linked with 2,3,4,5 i would assume...

They are apparently linked but do i need to pay for a month play time on my alts to make tripple XP work? Or is there anything i need to do ingame to make it work??