Seller did not disclose defect on electrical item and won't accept return

[rockerob]

Hi, i just brought a Datavideo TLM-170 from Australian seller,

https://www.ebay.com/itm/116336324808

Seller advertised as
Datavideo TLM-170V 17.3" ScopeView Production Monitor'
Was NOT a ScopeView, older model
Seller added link for specs - wrong model
https://www.avlfx.com/category/product/4618-datavideo-tlm-170v-17-3-scopeview-production-monitor-des...'
Lead me to believe it was better model
I was going to let it slide as i was happy to buy a 17" monitor with SDI input for my video rack.

During testing i found the SDI input to be defective, SDI NOT working properly-bad image

Seller won't accept return, i can't start a return claim and i can't contact a real person on ebay to explain in plain english that iv'e been defrauded, while the assistant has me in a endless loop and spruking the 'eBay Money Back Guarantee.
Loosing money on a tool i can't use just sent me backwards and making me sick, not much faith in buying through ebay again.
Australian consumer protection? need some links to shout too please
Me 1700+ feedback, what do i know....

[rockerob]

Sorry my terminology, 

No i wasn't able to submit a claim on the MGB page at all, the submit button being greyed out after spending 30 mins typing the issue in under 200 words or so,  it's been frustrating.

But a eBay rep is onto it now.

'You're lucky this is an Australian purchase as the return should be straight forward.'

Yes, i think that's why i am seeing action and help with ebay in this, we do have some 'lip-service' consumer protection laws in Oz.
I paid with afterpay, not sure if that has any policy about returns.
Thanks for your help,  all submitted now and in process

[rockerob]

Thanks, and i keep on finding my claim confirm button greyed out, unable to submit

[twyngwyn]

....and now the page is missing??

116336324808 for sale | eBay

[rockerob]

Ok, yeah it's all weird.
I can see that link because i brought it.
Cheers