Error: ‘You’ve invited the maximum number of participants your current plan allows. If you’d like to invite more, upgrade your account.’-webex

‘You’ve invited the maximum number of participants that your current plan allows.’ This is an error. Upgrade your account if you’d like the ability to invite more people.
It is not possible to include more than three people in a Webex meeting at this time.
Due to the limitations of my paid Webex Meetings subscription, I am unable to arrange meetings with more than three attendees.

When a host adds more than three attendees to a Webex Meeting, the following error shows on the screen:

Solution:

Getting rid of your free account is the only way to fix this problem. See “Delete a Customer Organization in the Cisco Webex Control Hub” for further assistance.