Your offers stay active for 30 days. Every sign-in with your username and password before the 30 days run out renews the offers in "Active" for another 30 days. If you have not signed in for more than 30 days, the system deactivates your offers automatically and moves them to "Archived", from where they can be activated again. Offers stay in "Archived" for one year; if they are not activated, they are deleted automatically.