Fear not! I had this exact problem but fixed it by doing this...
http://steamcommunity.com/app/218230/discussions/0/882966056588284919/
After you've done that, restart steam and click play PS2 on steam. You should notice the top right of the launchpad should now say Proseiben. Put in your EU username and password and away you go![]()
You came in as saviour 

What a spectacularly badly put together pile of crap this is.
Uninstalling!

Cheers mate!!You came in as saviour
It worked.
I was reading a thread about this problem of steam using SOE Launchpad and not Prosieben Launchpad. The devs say they are working on it as currently steam doesn't provide Prosieben Launchpad by default if you are EU or UK resident.
http://www.planetside-universe.com/showthread.php?postid=856820#post856820
I was searching all day at work to find out how to fix it! Which server and faction will you be playing as/on?Glad it worked for youI was searching all day at work to find out how to fix it! Which server and faction will you be playing as/on?
I just managed to get into the title screen but haven't decided yet about faction or server as they are all full atm. Is it possible to play with different factions in each server?

Server performance been pretty bad this evening, they're opening up a 4th EU server at least.
Login servers are slammed too according to smed.
Hello Marc,
Thank you for contacting us. I am sorry to hear this happened. I refunded the 2nd purchase for you. The issue with purchases not showing up immediately has been reported to Development. In the future if this happens again please make sure you log in and out for the item to show up. Also before attempting to purchase the item a 2nd time please contact us and we can look into the issue further.
http://**********
I apologize for any inconvenience this has caused you, and I hope that this does not continue to happen. If you need any further assistance please feel free to contact us again. Thank you for your time.
Sincerely,
Senior GM Sopis
Sony Online Entertainment LLC