The last year of undergraduate course is called make-up classes. Generally, the ranking of schools offering such courses will not be too high. IELTS total score and individual item 5.5 are the minimum requirements for a visa. If not, you can apply for a language course in your school. The general cost is 3000 pounds a semester (about three months), and the language class will be closed when it is full. The exact week number and deadline of the language should be contacted by school mail or telephone. Send your IELTS score and your offer to the language center of the school, and there will be a reply in 2-3 working days. If the main course starts in September, and many students will start to take language classes in July, then the visa will be set aside for 1-2 months, and they will start to apply for visas in May. This time period is to take the language course offer and change the language course visa letter.