Access problem to Admin Center

Dear Support Team,

I would like to start to use Vuforia Chalk in this free access campaign.

I have already created an account for chalk, and got an email from the system about becoming a Business Admin in Vuforia Chalk.

But unfortunately I missed the 7 days availability of the invitation and now I don’t know what can I do.

If I try to login to Admin Center I got the following message:

"You are not authorized to log in."

I tried to register again to Vuforia Chalk, but no new invitation.

Could you please check it, and help to solve this issue?

Many thanks in advance.

Br,

Zsolt Gerebenics