This is a supplier-payment story with a very common group-company problem. Lumina had been doing finance and accounting work across the Cocoon Data business for years. The group had several Australian companies, and one of them handled payroll, expenses and administration. When that admin company entered voluntary administration, the practical question became simple: was Lumina stuck with a dividend from that one company, or could it recover from the other group entities as well?
The Court looked closely at the engagement letter, how the group was described, who gave instructions and how the services were used. The contract included a joint and several liability term where there was more than one client. On that evidence, the Court found that Cocoon Data Australia and the corporate respondents were counterparties to the contract. That meant the other group companies could not avoid the unpaid fees by pointing to the administration of the payroll entity.
For small businesses, the lesson is to make the contracting party obvious before invoices start building up. If you are a supplier, write the engagement so it says exactly which entities are clients and who pays. If you are a group, avoid loose trading names and vague group references unless you really intend every entity to be liable.