That is correct. How many days are left, you can check by connecting the race key attached to the tranponder via USB to your PC and run the small software which you also need to renew the subscription.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .