hi first sorry for my bad english is not my natural language (im spanish)

so this is my cuestion, i pre-order a ps4 version of heavensward in SE store and i have 2 email, 1 with the early acces and the other with all info of the buy, so the email say i recibe the game in the release day 22-06-2015 but the early is the day 19 so, how i can play the early if i dont have the game to install the expansion? i want to know what is the plan for this.

i dont see any info of this in the top threats, so sorry if meaby i missed the info ^^

thanks ^^