Hi!
Did you purchase Office from Microsoft or third-party websites?
Where were you trying to download Office from?
Is your account correctly linked to Office? Open Word or Excel > Go to File > Accounts > Check if the linked email is the same email as the account you downloaded from.
- Maybe your Windows email address is different from the one you linked to the license.
Try downloading Office from https://m365.cloud.microsoft/apps or https://account.microsoft.com/account?lang=en-us > Subscriptions.