Greetings @Janeen5! Good to see another Twin Cities host.
In order to avoid this situation, I include the following statement in the welcome message to guests:
"Your reservation indicates that there will be [# guests] occupying the rental. We already have you (profile name) listed as one of the guests. In preparation for your stay, please provide the first and last names of all overnight guests. This includes relatives and/or friends (adults and children) who may stay for only a night or two. We must know specifically who is residing in the premises due to insurance regulations and safety/security practices."
Once that information is provided, I require guests to adjust the reservation if necessary. Hope this helps.
Good luck!