Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
1
Log into any Microsoft account you may have on this link to try to find the Microsoft 365 subscription.
https://account.microsoft.com/services/
2
If you are still unable to find the subscription, using any Microsoft account you may have, try using the steps they provide on this link to try to find the subscription for your payments.
2
If you are still unable to resolve this problem, this forum is just a user to user forum, no-one here has any account access, you will need to contact Microsoft Support directly, try using this method to contact their support.
Go to this link: https://support.microsoft.com/contactus
Select Microsoft 365
Click 'Get Home Support'.
In the box provided, type billing.
Press Enter, then on the next page, scroll down and click 'Sign in to Contact Support'.
Navigate to Microsoft 365 and Office - Manage my Subscription.
Select the 'Chat with support agent in web browser' option