I made a mistake in my original post. I'm not stuck at the travel authorization, I'm actually stuck at the part where the beneficiary receives an email from USCIS to set up an account. So I submitted I-134 for my dad and it's been approved, but there has been no email from USCIS inviting him to create an account (I have waited for a month). Would it be worth it to resubmit form I-134 again with me as the sponsor, or resubmit it using another person as the sponsor (example, my partner)?