Linked accounts

I have two zoom accounts:  a paid one for a business and a free one for personal.  There was never any problem clicking a zoom link and having it go to my free account.  Now, it goes to my business account.  The problem is that my business account has a logo with a different screen name.  I do not want that to appear when I am using my free account.  the technical support suggested logging out of my business account and manually putting in the meeting code instead of using a link.  I tried this and still does not work.  I am beyond frustrated and zoom won't let me chat/call because my account is not premium???  Anyone know what I can do?