Photoshop CC asking for serial number

Hi,

I purchased Photoshop CC earlier this evening. However when launching the software I get up a window that says: "Sign in required. Please sign in with your Adobe ID."

I press the Sign in-button. That leads me to the next window where I get the choice between "License this software" or "Start trial". The title of the window is Adobe Photoshop CC Trial.

I don't have a serial number, and I don't see why I should have a trial version of Photoshop CC. I have also downloaded Bridge and Lightroom 5 (a part of the deal), they both run without problems.

Hope you can help me!

Thanks,

Benjamin