Its actually harder than you think. I dont have the LL's address so i cant expect much as i have had to use the LL's IP as the address. Which means that they (the new tenants) might get a visit from the Sherrifs office!!!
I loathe to hear stories like this.
From the Landlord's point of view, it would appear the Agent has been negligent in their management of the property. Pure and simple. Any losses, expenses, costs or otherwise should be borne by the Agent to the Landlord. This has nothing to do with the Tenant and the Tenant should not bear the burden of liability between the Agent and the Landlord.
From the Tenant's point of view, this is a total complete utter waste of your time. Quite aside from the issue concerning the expiration of the Lease, the VCAT has determined that you are entitled to your Bond. That determination can be converted into a judgment order in your local Magistrates Court.
If you still have your original tenancy agreement, the Landlord's address should be nominated on the document. Otherwise, for all intents and purposes, service is through the Agency. If the Agency again neglects to pass on the service to the Landlord then that is their problem.
I wouldn't put too much reliance on what you may have heard of the Landlord's response to your claim - especially if such words came through the mouth of the negligent Agent. It might be that the Landlord is aware of the Order but have refused to pay on the basis that the Agent stuffed up - that is, the Agent being responsible.
How much are we talking about in total? You should remind yourself that you're entitled to interest on Orders. You should seek to convert the determination into an Order as soon as possible. Further, you might be entitled to interest from the date of determination to the date of the Order.
In the most extreme case, there are ways of "punishing" those who do not wish to come to the table with clean hands. If the Landlord continues to feign ignorance or the Agent continues to play the "not my decision" game, the consequences can be harsh and far reaching. However, it really comes down to how much time and effort you want to put into this.
-Rupert.