AC: Unity online problem.

i dont know if this problem will still be here tomorrow but im going to ask it


i got AC Unity and after some updating i should Finaly be able to play online...
but i cant.
i already have psn+. i got 2 free months through The Last of Us but the game keeps asking me to buy psn+ eventhough i already have it.
Unity also offers me a 14 day free psn+ but i cant purchase it because i already have psn+.

does anyone know how to fix this?
i wasnt really planning on buying psn+ because i can guarantee ill be playing (much) after 2 months