The licences are valid for the life of your membership plan (soon). Activations are validated if you have a contractual plan. If you do not renew your membership (for monthly, yearly or the lifetime subscriptions), the licences will be deactivated on the sites where they were active. Users who do not subscribe to monthly, yearly, or lifetime memberships and purchase products on request without memberships will have their licences valid for the life of each item they purchase.