HELP! DIDN'T RECEIVE TF2 PREMIUM AFTER PURCHASE!

[Speedstang]

One of my friends gifted me the orange box, so I logged into TF2, it gave me the Proof of Purchase hat, but nothing else! I'm still F2P with the tiny backpack! What happened?!?!?!?!

[nani-kokoro / 何-心]

By "gifted", in what condition did you get it in?
Like a code/trade, or trough steam gift?

[Speedstang]

Steam gift.

[nani-kokoro / 何-心]

Team Fortress 2 offers two main account types; "premium" and "free". On June 23, 2011, with the release of the Über Update, Valve adopted the free-to-play (or "F2P") model for the game, creating a distinction in account types between players who purchased the game before June 23, 2011 and players who download the game afterwards. Free and premium accounts only differ in the restrictions of the item system, and as such, no restrictions for either type affect gameplay or offer particular players any advantage over others.

[nani-kokoro / 何-心]

The premium account type is an account that had a copy of Team Fortress 2 purchased prior to June 23, 2011, obtained by:
Buying a retail or digital copy of The Orange Box.
Activated the game by making a purchase from the Mann Co. Store or Mann Co. Online Store.

The premium account type does not have newer restrictions on obtaining and storing items, nor on standard gameplay. Players who purchased Team Fortress 2 prior to June 23, 2011 or activated the retail version of The Orange Box were also rewarded with the Proof of Purchase, a cosmetic item for all classes.

[nani-kokoro / 何-心]

Source: https://wiki.teamfortress.com/wiki/Account_types