Recently another person posted about the same item. Ebay are not likely to do anything as it is outside the 30 day MBG period.

There are no warranties on eBay so if the seller is ignoring you, you might need to contact the manufacturer directly.

If that is not possible or if they can't/won't help then unfortunately you might not have much recourse.

Technically in Australia it is up to the seller or manufacturer to deal with recalled items. Ebay is not the seller so they have fulfilled their obligation by notifying you.

If the seller is overseas then they are not bound by Australian law anyway