The seller only starts the claim, the claim then needs to be escalated by the buyer, after he has escalated the claim, you can check with aust post on the outcome, if they couldn't be bothered going further with the claim they will not get their money back, no you don't have to send via registered, unless its standard post[no tracking] and then you don't have to, its only to stop scammers, careful my tried to pull a guilt trip on me to get a refund, after telling me lies about the contractor, Thanks to aust post I have an email saying <Removed> made no contact with Australia post. Funny how all the lies come out in the wash, still waiting for a response back from <Removed> but I think he is to busy eating his boots., arhaha caught him out, Paypal still has hold on my money but I will get it back,