1. If the application form has not been submitted and is still in the hands of an individual, you can modify it in the wrong place in the application form and just sign the modified place.
If you haven't submitted the application form, you can still download and print an application form on the website of the British Embassy, and then fill it out again.
3. If you have submitted the application form, you can call the British Visa Department and tell them the specific mistakes, and the staff will make reasonable correction arrangements. If you need to resubmit, you can only resubmit. If the mistake doesn't matter, you can submit the original.
Please note that when filling out the visa application form, the embassy will ask the applicant to check his answers when filling out the application form. Applicants can directly click on the relevant part on the left side of the screen, and if there are any mistakes, they can modify them. At the same time, if the format is wrong, the system will automatically mark the wrong place in red to facilitate the applicant to modify it. The most important thing is that the applicant must check the visa information before submitting it, and do not submit it rashly. If it is found wrong, it must be changed in time so as not to affect the later visa application.