Contact the test centre where you booked your test if you need to postpone or cancel. If you cancel or postpone your test more than 5 weeks before the test date, you will receive a refund minus an administration fee. If you cancel or postpone your test within 5 weeks of your test date, you will be charged the full fee unless you have a serious medical reason for needing to cancel or postpone it. If you provide a medical certificate within 5 days of your test date, you will receive a refund minus the local administrative cost.