You may have confused the ebay agents. They are usually not very good, or so most people report.
What I am gathering from your report here is that with account 1, your 3 items were all bundled within the same order. So maybe you placed them in the cart then paid the total in full to the seller.
But under a different account, you bought the same 3 items separately so each should come with a separate tracking order. And they arrived okay.
Plus you also ordered something else (from which account?), which is supposedly going to be cancelled but you have received no refund.
There has indeed been some incompetence on ebay's part if they accepted tracking numbers from a completely different account as proof that your first order had been sent. In fact, there should only have been one tracking number for the order from account 1.
If you opened a proper ebay claim, which you say you have, you need to appeal the finding. Keep your details simple as possible and clear, that the tracking numbers are not for this account. They do not match.
You need to open a completely separate claim for the other purchase that the seller said he was cancelling. It sounds as if he may not have done. Someone here said if a seller cancels an order, ebay automatically processes a refund. That being the case, the evidence suggests the seller has only said they are cancelling.
Forget all that, open a proper claim on the basis that order has not been received.
The seller will need to respond to that.
I hope you received the refund on the 2 additional orders you also had (which account?)
I fear that unless you can follow through carefully on this, you will lose all your money. The ACCC does not have the power to retrieve the money from an overseas seller, as far as I can make out.
Did you pay by paypal at all?
Always go through ebay first to retrieve your money but if appeals get nowhere you may be able to claim via paypal if you paid that way. Or make a bank charge back.
Whatever you do, when you make a claim, only talk about that account.
That seller you bought from sells a lot of expensive things and has a poor feedback score. People here often say a volume seller needs about 99.5% to be considered reasonably safe. Always read the negative and neutral feedback. This seller has a steady track record of sending fakes and items with defects or of low quality and is often slow to respond to messages or refund. They don't follow process. They might ask a persosn to return an item but it seems they don't provide the return postage.
It was probably not wise of you to buy so much from them, especially all at once, without waiting to see how a first purchase went.
Not much you can do about that now but remember it for the future. Always check out the feedback and be wary of big dollar purchases from overseas.
