Has anyone else been experiencing a problem with contacting a seller on eBay posted items?

There use to be a 'contact seller box' on the item's page, usually down towards the lower area of the first page of a listing. It has disappeared for me over the past month or so.

There was an item posted just recently that listed some defects, but as I looked thru the photos I thought I saw a few more defects that were originally listed. I wanted to ask the seller a question about this, BUT could not find a box/button/ whatever method to pose that question to the seller????