How many people can I add to receive the form

How many people can I add to the receipent emails.  I want to add 2 more (board members) but the system says I have to upgrade.  We have the free option?  I asked the question about a week ago and have not received a response.  Please email me with the answer.  clathrop42@gmail.com

Please note that free accounts are subjected to limitiation about number of recipients.

After upgrading your account to a paid plan, you can add more recipient emails by following this guide here : Send-Notifications-to-Multiple-Recipients