Listing a trading card with authentication

[caveroni]

Hi everyone,

I'm attempting to list a Justin Jefferson card and I'd like to use the authentication service, but I can't find that option when I'm attempting to list it. I'm sure that I'm missing something obvious. Could somebody point me in the right direction?

[wooden_flower]

You do not get to choose authentication.  If it qualifies, eBay will add the authenticity guarantee.

See the requirements under trading cards here - 

https://www.ebay.com/help/selling/selling-tools/ebay-authenticity-guarantee?id=4644&st=3&pos=1&query...