Yeah, it's a Scottish company called the SLC, they will make their money in the same way banks do when they lend you money.
[ame="http://en.wikipedia.org/wiki/Student_loans_in_the_United_Kingdom"]Student loans in the United Kingdom - Wikipedia, the free encyclopedia@@AMEPARAM@@/wiki/File:StudentLoansCompany-logo.png" class="image"><img alt="" src="http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/StudentLoansCompany-logo.png/400px-StudentLoansCompany-logo.png"@@AMEPARAM@@en/thumb/4/4a/StudentLoansCompany-logo.png/400px-StudentLoansCompany-logo.png[/ame] "Loans are provided by the Student Loans Company and do not have to be repaid until students have completed their course and are earning £15,000 a year (£10,000 until April 2005). The interest rate is updated annually and is tied to inflation (currently 3.1%), making the loan interest-free in real terms. The loan is normally repaid using the PAYE system, with 9% of the graduate's gross salary over £15,000 automatically being deducted to pay back the loan. There is no particular schedule for clearing the debt, but, if it has not been cleared 25 years after repayment began, or the student turns 65 years old, the remaining debt will be cancelled. For students beginning courses before 1998, the arrangements for repaying and deferring are different. Although Scottish students have their tuition fees covered by the SAAS during their time of study, much of this is actually repaid in a Graduate Endowment."
http://www.moneysavingexpert.com/loans/student-loans-repay interest rate has just doubled also "If at anytime you move abroad, you're expected to inform the student loans company so you can make repayments directly to it (usually by direct debit). Your repayments will be deducted in pounds sterling and you'd be responsible for any costs involved in converting the currency."