You have attempted to apply for a course with Oxford Home Schooling but you are over the age of 18. You need to apply via Oxford Open Learning.
Oxford Home Schooling and Oxford Open Learning are two sides of a single educational not for profit trust, The Oxford Open Learning Trust.
As the name suggests, Oxford Home Schooling is dedicated to providing a service for children who are being educated in the home environment under the supervision of one or both parents, or legal guardians.
Oxford Home Schooling students are normally aged 11-18.
Oxford Open Learning, on the other hand, offers similar support for adult learners, most of whom are returning to learning in order to achieve specific goals in terms of career progression or entry to higher education. Oxford Open Learning students are normally aged over 18 and not in full-time education.