请问如何延期？急，谢谢

原本定于8月26号考试，但是感觉自己准备还不充分，想延到9月下旬。今天在ets网上看不到关于ibt延期或改期的链接和信息，请各位大大提示一下吧，谢谢了！

related
information from this bulltin.hope it works:

            

Rescheduling or Canceling

You must reschedule or cancel your registration no later than three full days
before your test date (not including the day of the test or the day of your
request). For example, the deadline to reschedule a Saturday test is Tuesday.
If your request is not received at least three full days in advance, your full
test fee will be forfeited. Test administrators are not authorized to make
schedule changes.To reschedule, you must provide: your registration number; The
full name you used to register.The fee for rescheduling is US$40. Payment must
be received prior to rescheduling.

 If you are testing in the U.S.,
Canada, or a U.S.
territory,* you can reschedule on the TOEFL iBT online registration system or
call 1-443-751-4862 or 1-800-GO-TOEFL (1-800-468-6335) to reschedule or cancel.
[1]
            

If you are testing outside the U.S.,
Canada, or a U.S.
territory,*you can reschedule on the TOEFL iBT online registration system or
call the appropriate Regional Registration Center (RRC) to cancel or
reschedule.

            [1]you
cannot reschedule or cancel your registration via mail or e-mail.[1]
If you do not cancel or reschedule your registration three full days before
your test date (not including the day of your test or the day of your request),
your full test fee will be forfeited.

搞了半天终于延到9月份，还把地点改到了离家比较近的考点。是从orders进去，然后check考点信息那里有cancel和modify两个选项，然后就可以进行接下去的操作了，charge了40刀。

多谢各位！