I’m sorry for any confusion regarding the functionality of the “cancel” option.
When you cancel your account, you’re only cancelling recurring billing. Any already-paid membership will remain available until it expires naturally. After the already-paid membership is over, your account will revert to free access instead of automatically renewing.
So, if your membership is valid until March 6 and you choose to cancel your account now, you can still log in and play with premium access until March 6, 2019.
After March 6, you would have free access until you choose to reactivate and purchase additional membership to the game.
If you need any direct assistance with your account, please feel free to visit our help website and submit an email support ticket as well: https://www.funcom.com/help
We’ll be happy to help you further as needed.