Why is the British visa so slow? How do I know the progress?

Remember to know the amount in advance when applying for a visa. I just answered a similar question the other day. My answer at that time was as follows:

As a student visa, you should know that 15 days signed by T4 students in the UK means 15 working days, so the normal time is 20 days -2 1 day. I got my visa half a month ago and waited about 17- 18 days, so yours should be coming down soon. Wait until one day when the query status is invalid.

When using the word "research", if you are not mistaken, it means that your visa status is about to change.

Don't worry, because these months are the peak of student visa, T4 student visa is preferred. Of course, from another point of view, it is the peak period, and it is possible to delay the visa for a few days. /kloc-Your visa has not been issued after 0/5 working days. You can choose to write to the visa center to urge the visa. /kloc-There is no point in urging the signing before the end of 0/5 working days.

T4 student visa and immigrant visa are not the same thing. Don't teach others without any experience. My answer is clear: "T4 students now give priority to signing time." It is clearly stated in the official website that more than 90% of the application materials will be processed within 15 working days after the students sign. If you want to complete the immigrant visa in 15 working days, you should die. It is also clearly written that non-T4 students should not sign, which will slow down the progress.