Dispute disagreement

Description

I started a dispute for a charge for a product that was a complete scam. The response from the seller was that I return the item to them and they would issue a full refund, who is in China some where and took two months to get to me to begin with. I am NOT sending it back. But I do not see how to respond or to move it to a claim. The option is just not there. I basically feel like my hands are tied and that paypal is allowing me to get **bleep** by this company.