SUB怎么退考呢

凌晨雨UID: 2746112

求问.
有重要的事, 不能去考SUB了.
不知要怎么退考. 退考的话, 有一半的返款的吧?

睡到自然醒UID: 2814923

You must reschedule or cancel your test no later than 3 full days prior to your appointment (not including the day of
    the test or the day of your request), or your test fee will be forfeited. Call or write to the GRE Program with your name,
    date of birth, address, registration number, test date, preferred test center, and new test date. Mailed requests must be
    received no later than 3 full days prior to your scheduled test date.  The rescheduling fee is US$50.  You cannot transfer
    to the next testing year.

    If you cancel your General Test or Subject Test no later than three full days prior to your test date, you will receive a
    refund equivalent to half of the original test fee. Late registration fees are not refundable