Hi @dbeastly1 ,
It should be firstname.lastname@example.org, since this is not the 1st time that happened to the service. Our Provisioning Team need a documentation to raise the issue to NBN Co. Let us know once you have sent the document and we'll chase this to our team.
To avoid redundancy and confusion. We'll provide an update on your previous post yesterday located here: https://community.tpg.com.au/t5/Broadband-Internet/My-internet-is-down-since-yesterday/m-p/38755