After uploading multiple members to your Typsy account you can opt to send them an invite. 

1. Go to Account and click Members.

2. Go to Actions and click Bulk invite members.

3. Check the tick box next to the Member(s) you'd like to resend an invite to and select Send Typsy invite

If you'd like to resend an invite to all pending members, check the Select to resend a Typsy invite to all Pending members tick box.