Hey, ive just bought a ps4 and a copy of ARR, i played on ps3 a while back but left it, i bought it on pc due to wanting to play again, so i made a new user name and password with the new purchase. When i put the ps4 version on it takes me to the sign in page but will not allow me to use the username i used for the pc, its greyed out with my original username i haven't used for a while. is there anyway to change this or sort this out, i cant find anything to help online