If you have previously sent an invite and the user lost, or didn't receive the email, follow these steps. Note: Only Admins and above have the ability to resend an invite.
Step 1: Navigate to your "Team" page.
Step 2: Select the "Company" tab.
Step 3: Find the user you want to re-invite. You'll see a Pending Invite status under their name.
Step 4: Hover over the Pending Invite status, it will change to a resend invite link.
Step 5: Click the link to send a new email and login details to that user.