You can submit a request to Help Desk by logging into the Help Centre and using the Submit a request form.
Note: You need to be signed in to the Help Centre in order to see the Submit a request tile. Please read the article titled 'How to sign in to the Help Centre?' for instructions on how to sign in.
For urgent matters specifically relating to ASATS, a request can be submitted through to the ASATS Help Desk by calling 1300 848 437