Our K1 visa interview experience at Guangzhou on 28 May 2024. I’m not sure it’ll help you. NVC sent our approval petition to Guangzhou consulate in 2 weeks , CEAC status changed to READY. I sent an inquiry to the consulate what to do next. And replied us Wait for an instruction for next steps. My fiancé received Packet 3 by express mail at her home address in one week. We followed all the instructions on Packet 3. She mailed all the documents requested to the consulate via China Post. In one week the consulate received her documents and sent Packet 4 by email. Now it’s ready to create an account and register. She was allowed to make a payment for the processing fee, after successfully complete payment, she was able to make an interview appointment. There was a calendar showing availability of the interview dates. She picked one. It’s very easy process. I have no idea if the availability calendar shows up to next year. You can make some inquiries to Guangzhou consulate when you have questions. I think the consulate will give correct answer. Good luck