If you have the registration key - enter EA shop (not EA support), and try to register again your game. The EA shop is responsible for activating your game.
Contact their support team - not TS2 support team - if you have problems, and send them your registration key. If you have a copy of the order number of the game (I always keep it, just in case) - they can check faster, and lead you how to activate the game.
For instance, here is an e-mail from a company that I bought from it a game:
"GameHouse Receipt for: Lily (deleted)
Order # (deleted by me)
You are receiving this email because an order that you placed has been processed.
The following item is downloadable:
Item: [name of the game - deleted by me]
Item Cost: $19.95
If you have not already done so, download this product at:
http://downloads.gamehouse.com/funpass/HiddenObjectShowInstall.exeSub Total: $19.95
Sales Tax: $0.00
Shipping: $0.00
Total: $19.95
Below is the registration information for your games.
If you have already installed a game, skip to Step #3.
Follow the instructions below for each item to properly register your games.
Step #1: Download your game
Step #2: Install Your game
Step #3: Enter your license code
Step #4: Enjoy!
IMPORTANT:
GameHouse uses a registration system to unlock trial games to the REGISTERED VERSION.
When you install a game for the first time, it will be in TRIAL MODE.
After you purchase a game, it should start immediately upon launch.
If it does not, click the Register tab and enter your License Name and License Code to enable the REGISTERED VERSION.
If you have any questions, concerns, or problems with this order,
please see our Frequently Asked Questions at
http://www.gamehouse.com/support Item: The Hidden Object Show
License Name: Lily (deleted)
License Code: (deleted by me)
GameHouse strives to give the best games and the most fun to its customers.
We often create new games and update our older ones,
to make our games the best experience possible.
Please check back from time to time for updates, fixes, news,
and more great games at
http://www.gamehouse.com Thank You,
GameHouse"
I keep it in a special folder, as a receit.