関連ワード:  student finance plan type 2    student loan plan type 2    student loan plan type 2 threshold    student loan plan type 2 meaning    student loan plan type 2 repayments    student loan plan type 2 deductions    student loan plan type 1 2 or 4    student loan company plan type 2    student loan plan type 1 or 2    student loan plan type 1 and 2 deductions are calculated on what basis