Not sure why the link doesn’t work, but I suspect as it’s meant to be a private support ticket, nobody else in the community will be able to view this anyway. Are you logged into the zendesk site that support uses when you try to access the link?
Also the whole fairphone team have been busy with shipments so this could explain the long delay.
If you don’t hear anything this week, let me know and I’ll try and get a response from someone in support for you