Hope someone can help with this - our case has been in ready status at the London Embassy since May 27th. I have filled in the DS-160 and keep trying to book my interview and it keeps giving me the following message attached. Very annoying since the status says it’s ‘ready’ - like many others on this group I have not received a letter from the US embassy telling me to go ahead a book the interview. All I have is a letter from the NVC with my LND case number. Not really sure what to do from here. Thanks in advance.