Not sure when your Microsoft 365/Office 365 plan expires?
Go to https://www.office.com/ login with the Microsoft account linked to your Office 365/Microsoft 365 plan.
Look for the icon at top right, it looks different for each person and might be your initials.
Choose ‘My Account’.
Then ‘Services & Subscriptions’ on the top row.
Look for Microsoft 365 block.
The date could be in American month/day/year format – watch that.
Renewal happens two weeks before expiry
Microsoft will charge an automatic renewal TWO weeks before the shown expiry date.
To avoid being charged full price, you need to buy Microsoft 365 (discounted from legitimate retailers) and apply it to your account before Microsoft automatically renews.