Solicited To Buy Outside of eBay

[dad_of_one_autistic_superhero]

I was solicited to buy an item outside of eBay, the seller (who I previously purchased from) asked me to send them $200 diretly through PayPal. When I explained to the seller that I wanted to purchase the item through eBay, they told me it would be an additional $120. I know this is a violation of eBay policy, and unfair to those of us who are honest, so I want to report this seller. The problem is, eBay has made it nearly impossible to figure out how to report a seller....any advice?