Kogan copped it for price jacking. Is a lawsuit feasible for ebay?
Class Action Lawsuit against eBay for Price Jacking

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 - lol, aussie government already 'fined' them twice, that'll teach em they said ($32k the first, $350k the second) - its chump change 
 
 - Even if you wanted to, wouldn't you need to 'sue' each individual seller, and not eBay?  - Yep. In theory you could sue Ebay for not stopping it, but ultimately it's the sellers doing it not Ebay. 
 
 - Price jacking and encourage scalpers 
 - OP, how much did you lose? 
 - It's feasible. You do need to pay the lawyers though. Also better have collected evidence or you'll be thrown out faster than Trump.  - lawyers would be the real winners out of it too $$$  - So long the real loser actually suffers. Wtf with fining so little! 
 
 
 - Ebay are only a platform for sellers to interact with buyers and as such they don't set prices - the seller does. - Unless you want to take out a class action against each individual seller, most based overseas, where I doubt if Australian law applies OP I can't see any Lawyer even being interested in considering your suggestion. - Kogan is an Australian seller/company, completely different scenario. 
 - eBay is a marketplace 
 - they are a protection racket. I listed something about 12 other people are selling. Exactly the same item. They immediately took down my ad, citing a prohibited product. So I reported the others as a prohibited product. They allowed them to continue selling and making money, but squashed my new competition. I believe this is illegal business practices. 


Why not a class action against kogan due to precedent?