It's all under "eBay help" at the top of the page. Try the link below and scroll to the bottom for contact options.

https://www.ebay.com.au/help/selling/selling/seller-levels-performance-standards/appeal-defect?id=48...

As Padi  said,  All via the Help Tab.  and seems to be working ok.  just tested with automated chat, which worked and simply have to type speak to agent or similar to go live.

Still there for me too?

Friday is eBay fiddle day so maybe there is a temporary glitch for you at the moment ?

Sunday Monday eBay days
Tuesday Wednesday eBay days
Thursday Fri- what? eBay, hey?
Friday glitch! what is this?

Glitchin' all day for you---

This day is aw-----ful
I've got to cry (Oh eBay day)
This day is awful (eBay day)
Oh tell me why?

Goodbye sunshine, hello rain
I'm tryin' to do these things - can't (again).
eBay's glitchin', I'm just mad,
I'm screamin' "eBay Galahad!!!!"

This day is aw-----ful
I've got to cry (Oh eBay day)
This day is awful (eBay day)
Oh tell me why?

It's Friday. That is colloquially known as eBay's Glitch Day, or Day of the Glitches, etc.

The best advice we can offer is... let eBay's "scheduled maintenance" take its time, and try again later.

In the meantime, is there any community-based advice that might help you with the issue about which you wanted to contact eBay CS?

I just went there... and saw what the Countess saw, so I won't post it again, but it should be fine soon, so try again later.