I would check you daughters immunization status before speaking to centrelink. You can do this online with Medicare. If it is a case of the GP being slow in lodging the paperwork you will need to make sure his is completed first. If it has been completed then contact Centrelink. I don't this can be an online thing. The lines open at 8am to 8pm. Maybe try first thing in the morning and try to beat the queues.