Please help!!

I have been having a regular meeting each week.  The invite comes to my email and I am able to successfully join the meeting each time. The problem is that the user name displayed is my son's. I have my own independent zoom account and so does he but i don't know why the meetings are being linked to his account. I don't know if somewhere along the line if I ever used my email to set up his account. Any meetings I have always display his name. Please can anyone help?