I would think that if your application has already been lodged then that's got to be better than it still being with IXP. I've recently lodged an application too, but a different one to yours tbh I dont know what a 190 is, also I didn't go through an agent. However I was sent the following links that may well help you. I hope they are
Clients with general enquiries about any visa application in progress: http://www.immi.gov.au/contacts/forms/europe/
Unfortunately we are unable to respond to requests for general information or updates on an application in progress from this address. If you have questions about your visa application or you have not yet made an application, please re-send your message to the Europe Service Centre using the online form at:
http://www.immi.gov.au/contacts/forms/europe/
Our trained specialists in the Europe Service Centre are also available by telephone in the following languages: English, Croatian, French, German, Italian, Polish and Spanish. Please refer to the link below for contact numbers:
http://www.immi.gov.au/Help/Locations/Pages/Service-centres/europe-service-centre.aspx
Client telephone hours:
9.00am to 12.00pm (London GMT), Monday to Friday - Non-English language services.
1.00pm to 4.00pm (London GMT), Monday to Friday - English language services.
Good Luck!