Dear @Vinny Ainsworth,
Thank you for posting your question in the Microsoft Q&A forum.
We apologize for any inconvenience you may encounter when using our services/ products. To help you with the issue, we need more specific information from you:
- Could you please provide your account address via a private message?

- Could you please confirm which edition of the Microsoft 2024 product key you have? ̣(e.g., Office Home 2024, Office Professional 2024, etc.)?
In the meantime, kindly try these following steps:
Try These Quick Fixes
Clear browser cache and cookies, or use Incognito/Private mode.
Switch browsers (Edge, Chrome, Firefox) and retry.
Disable VPN or proxy temporarily.
If still failing, it’s almost certainly a Microsoft-side outage.
Each type of license must be retrieved and installed from its respective website. Please refer to this: Office 2024 Service Unavailable - Microsoft Q&A to complete your license installation.
By providing these details, you enable us to respond quickly and ensure the support you receive is tailored to your situation.