If you have already booked the test, or if you have an urgent matter, please contact the test center directly. IDP IELTS customer support will respond to your inquiry within 3 business days (excluding weekends, holidays, and New Year holidays).
Submit your details and enquiry here
How do I book my IELTS test?
How do I postpone or cancel my IELTS test?
Can I do all parts of the IELTS test on computer?
Can I do all parts of the test on the same day?
What are the test terms and conditions?
What should I bring on my test day?