hi i am writing to make you worry. I am of Congol...

hi i am writing to make you worry. I am of Congolese nationality from Brazzaville. I try since fill out my visa application online on your required page and when filling, as soon as I put all the first information on my nationality and I want to go on the next page, I receive information that the applicant passport nationality is not eligible to use this online service. so please like to know how to finally make my request because here is the site i use (online.immi.gov.au). I would like you to tell me what to do. thank you and my best wishes 2020.