Пожалуйста, помогите перевести.

Выражение встретилось при оформлении визы для обучения в Великобритании:

Заранее спасибо

Confirmation of Acceptance for Studies (CAS) is actually Replacing the visa letter, the Confirmation of Acceptance for studies is a unique reference number which is assigned to a student by their school or college using the new sponsorship management system. Rather than present an original visa letter with their applications, under this new tier 4 rule students will have to submit their confirmation of acceptance for studies reference number, avoiding the expense of having documents sent secure mail across the world.

И в таком же роде переводи дальше сам или заплати...