Support Access To One of My Sites – won't show up in the dashboard

Hi

Just trying to enable support access for my site – temp domain v.policecommunity.co.uk but getting a message saying

This site is not enabled for support. You may change which sites are enabled or upgrade to a higher membership level here »

I have visited that link and everything is showing as enabled so not sure how to grant support access now as the button is unavailable.

Anyone able to help please?

Thanks

Wayne