i have a free version for 2 account but don't have activation key?

there is ! sign beside both account i have, i never got the license for both?
can you please send me the link to activate existing account?

If you have lost your activation key click this link to recover it. https://www.emclient.com/lost-activat…

To re-enter key go to Menu > Help > License. Click on Activate and insert your activation key (including the hyphens).