Hello dear, the embassy was the one who sent us with the website link to self schedule an appointment following our approved expedite request . It’s sadly the procedure they do for the immigrant visa when they grant an expedite in Cameroon, I have two other people who were granted an expedite like me and scheduled with no issues using the old website . The new website is a total disappointment, I guess I’ll have to reach back to the embassy or maybe NVC because the support service for that website is not helpful