Stop offering Beta downloads

I keep getting pop-ups offering an upgrade to a Beta version of TeamViewer. Is there any way of turning this offer off? I understand there are some versions of TeamViewer where, under Extras==> Options==>General, you can tick/untick an option to "receive insider builds". I don't have that option ticked. In fact, I do not even have that option - period (I am running the Free version of TeamViewer). As a rule, I do NOT want to install Beta versions. If I feel adventurous and have the time to "play", I want to be able to go to a website where I can download any and all beta versions.