If you are going to Macquarie Park, please be mindful of your actions. Going to Macquarie Park is somehow your fastest way to get someone to do something for you. See if they can sort out the issue for you. If you haven't been able to use the service, you should be eligible for refund. I would suggest you to ask why is it cancelled so you can understand if there are any problems or miscommunications on TPG side. Let them investigate first and if nothing goes well, you can request a higher up and see if they can do something.