Hiya @David-A-Raphael 👋
The ATO takes the payee identity data you send them and matches it to a taxpayer identity. When they have a high level of confidence that they have matched the taxpayer, they publish the Income Statement.
Your first action then is to confirm with your employee that the payee identity data you hold for them is accurate: full name, date of birth, address, TFN, perhaps their personal email addresss and mobile phone number (so that ATO can cross-check the myGov identity).
If your employee confirms all of that, they advise them to log on to their ATO Online account via myGov and confirm their identity data recorded with the ATO. If that is also fine, they must contact the ATO themselves, as it's a taxpayer matter, not an employer matter. If it's not right, they can correct it and shortly afterward, their Income Statement will be published.
Deanne
Deanne