If you cannot log in, check:
The email address is correct.
The password is correct.
The reset link is the newest one.
The company invite was accepted.
You are not using a different Google or email account.
Your browser is not blocking the login flow.
If you can log in but cannot see a company, check:
the company invite was sent to another email
your invite is still pending
an admin has not invited you yet
an admin removed your access
you are in another company workspace
the company is still in draft
Ask a company admin to resend the invite if needed.