If you haven't received an invitation:
1. Ask an Administrator from the company account you want to join to invite you.
2. They just need to follow the steps here.
3. Check the mailbox that the Administrator sent the invitation to.
If you have received an invitation:
1. Open the invitation email > Click "Accept invitation".
2. Fill out your details to create your personal account in Recruitee > Click "Continue".
3. You will be redirected to the company account you're invited to.
Check the company name on the top menu to make sure you are in the right company account.
Try this now in your Recruitee account! Make sure you are logged in to keep all your changes saved.