For larger customers who have Credit Accounts we always have issues with number of registrations per company. If client has a credit account with us we tell customers there can be only one registration. Otherwise you will be sending multiple statements to same customer. So an idea would be to issue a Statements based on a ABN Number. On the statement you could see all the registrations who have same ABN. Not sure if this opens a can of worms and if anyone else has similar issues.
