You can check the status and search the items of your purchase here:
http://steamcommunity.com/id/jaszszs/inventory/#570

In order to receive your order on the said day:
Make sure your steam guard is activated -> dota2phstore.com/guard
Make sure your account is in public -> dota2phstore.com/public

UPDATE: There’s a new steam implementation that items purchased will be gifted after 30 days since you were asked to go to this page.
Note that the date mentioned via FB or Text will be the release date of your purchase
Text us by morning on the said release date in order to remind us. Thank you! =)