how to link prophecies to my factions acc?

Hi guys

i already got factions and just bought prophecies off someone. mine came wif the box and everything but the guy boughit if of playNc website. how do i link his acc to my factions?

i need help guys

thx

You can't. If he already used his access key to make a game account; which I think you have to if you buy it right off plaync then you can't. Can't merge existing accounts.