Paramount + with Showtime has no Paramount +?

After researching many comments due to being unable to access Paramount + even though my Xfinity cable plan says I have Paramount + with Showtime, it appears that Xfinity’s package for Paramount + with Showtime only includes Showtime and not Paramount +, is that correct? I don’t understand. Is there a separate cheaper package for only showtime or is this the only way to get showtime? Otherwise why am I paying for Paramount + with Showtime if I can’t access Paramount + and if there is a separate cheaper package for Showtime only, which is apparently what I am actually receiving. Please provide some clarification. This makes no sense and seems very wrong!