Today is July 28th , why can't I download my pre-ordered: The Sims 4 High School

Unsure if it is due to my timezone (GMT) as it is already the 28th for me

Thank you for your response 

I was unsure of this as it said buy when I entered the Microsoft Store, instead of preorder 

Should I uninstall it and try again later?

@muntedvoid I think you can just leave it installed if you don't have issues.

I'm really unsure what it is, tbh.

EDIT: Merged this with another thread. Seems it's confirmed by a EA CM now

I pre-ordered a few days ago, went in to Origin this morning to install it and play but it didn't automatically happen. When I find it in the store it says I already own it, when I find it under 'more options' on the base game icon it has a green tick which says 'unlocked'. All the other EPs have a green tick with 'installed' next to it and then an option to buy it as a gift.

I've restarted my laptop and Origin multiple times and have also reinstalled Origin but nothing is working. Any suggestions???

I think the pack doesn't officially drop today until 10:00 am PST, as I was still able to "pre-order" it this morning.  

I preordered the sims 4high school expansion pack. It's not installed yet. it still says release date 28th of july. it should have been installed already. 28 is today!