How long after activation for Fon

How long after activation can i set up fon. I was activated today, i have tried to see if fon is active but when i try to check fon, with username and password, it says authentication failed check username and password. I have checked the username and password from order confirmation email and it is correct, do i have to wait for a certain amount of time, after activation before i can use this.

Ok its working now, obviously didnt wait long enough.