If you get the following message when trying to renew Microsoft 365 Family or Personal with a product key:
Sorry, we can't set up your account right now (NoMatchingOrEligibleProductsFound)
This is most likely because that product key was purchased in a different country or region than where you’re currently located. Microsoft Office product keys must be redeemed in the country or region where they are purchased.
Also, if you trying to extend the duration of your current Microsoft 365 subscription with a product key that was purchased in a different country or region than the one originally used to start your subscription. For example, if you set up your Office subscription in Australia with a product key purchased there and you then purchase a product key in the United States, and attempt to extend your Office subscription with it there.
To try and resolve this, you can either redeem the new key to a different Microsoft account or you can wait until your subscription expires (at least a day after the expiry date) to use the new key with the same Microsoft account.