
Hi, I'm John! I will help you with this.
To help narrow down the issue:
- May I ask where you purchased Office, was it through Microsoft’s official website or a third-party seller? If possible, could you share the specific purchase link so I can take a closer look?
- Also, did you try redeeming it through setup.office.com? Sometimes switching to a different browser or using another device to access the redemption site can help clear that “TooManyRequests” error.
Click "Add comment" to let me know.
Regards,
John J.D.