Can't post on Diablo 2 Resurrected forums / Not been online 30 days

Hi All, as per subject, purchased the game yesterday, still cannot post on forums as “You must own Diablo II: Resurrected to post on this forum.”

Unhappy purchase, first start I can’t get past the “You Have Not Been Online In The Last 30 Days” despite having set all the firewall exceptions and so on.
Now can’t get to the Tech support forum for that.

I’d be happy if somebody would help with this.