Paramount plus

I’ve been through these comments and STILL cannot get an answer correctly;  I just came back to Comcast and was told paramount+ is free to me.  I’ve tried NUMEROUS times to access via the Xfinity stream app AND via the Paramount+ app, with no success.  Xfinity and comcast are not even an option for selecting providers!!  So here’s the question;  was I lied to or is there a real way to get this “free” paramount+????