For all programmes which state 'applications are made through UCAS', you must apply online at the UCAS website.
There are full instructions, so it should be easy to fill in your online application.
There are three types of applicant:
1. Students at a school or college registered with UCAS
All UK schools and colleges (and a small number of establishments overseas) are registered with UCAS to manage their students' applications.
Advice is available from your teacher or a careers adviser at your school or college. You fill in an online application and submit it to a member of staff. After checking your details, and having added the academic reference, your school or college submits the completed application online to UCAS. You pay online using a credit card or debit card. You may also be able to pay through your school or college.
2. Independent applicants in the UK
Other UK applicants, who are not at school or college, apply online independently.
It is likely that you are a mature applicant, who, unlike school and college students, cannot readily seek advice from your teacher, but can instead consult with various careers organisations (such as Connexions). You are responsible for paying the correct application fee, for obtaining and attaching the academic reference and for submitting the completed application online to UCAS.
3. International applicants outside the UK (EU and worldwide)
Except for those whose school or college is registered with UCAS, individuals from the EU (excluding the UK), and worldwide, apply online independently.
Advice is available from British Council offices and other centres overseas, such as your school or college. You are responsible for paying the correct application fee, for obtaining and attaching the academic reference and for submitting the completed application online to UCAS.