Cannot access Skydrive Pro

Hi,

on my Office 365 account I would like to start using Skydrive Pro. However, I cannot anywhere enter this service. All I can do is just use my Sharepoint and sync it on my PC with Skydrive Pro desktop app (part of Office 2013), but cannot anywhere enter web interface of Skydrive Pro.

Any suggestions please? Do I have to activate it anywhere?

Thanks for your replies. Much appreciated!

Ondrej