@Pete Munt Thanks for reaching out. I believe you are talking about the below page:
It appears where you don't have any active subscription, or you have switched the directory in the tenant where you don't have any active subscription. If you already have the active subscription, then it might be the wrong directory. You can change the directory and see if it helps you. For mor details please refer to this document.
Please "Accept Answer" if the answer is helpful so that it can help others in the community.