Every automatic e-mail from AIT has a "Manage your Subscriptions" link at the botton. Please follow it to the page where you can disable your subscriptions.

If you are a licensed user and suddenly start receiving trial version reminder e-mails, that's most likely because you have downloaded the installer for your program from the "download trial version" page. To avoid this, please download your installers from your personal profile at https://clients.translation3000.com