Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
1
What error is indicates when you try to use the Office apps on your PC, is that a popup error indicating the Office app has run into a problem or is this an activation/subscription error?
Please provide a screenshot of the error you see indicated.
2
When you purchase an Office subscription or licence, then when that is activated, it gets automatically linked to your account as a digital licence, where did you purchase the subscription, is that from a 3rd party retailer or directly from Microsoft?
Log into any Microsoft account you may have on this link (https://account.microsoft.com/services/), do you find your Microsoft 365 subscription listed on any account you may have, if not, if you paid Microsoft for the subscription, click the Billing icon on the left, do you find your payment listed there?