Thanks. That’s disappointing. Anyway, the first step is for Manager to be able to generate data suitable for submission. That’s immutable requirement. Once that is done, I will look again at options.
There are plenty in development as per https://www.ato.gov.au/business/single-touch-payroll/in-detail/low-cost-single-touch-payroll-solutions/
This one appears to be free for up to 4 employees:
https://www.obsecuremessaging.com/products-services
Another one free for up to 2 employees: