Complaint Review: 1st-art-gallery

We bought a couple of Georgia O'Keeffe paintings as she is a famous American artist. But when they were shipped from China, US Customs stopped them and asked me to produce the license from the O'keeffe estate authorizing the copies. I contacted David at 1^st-art-gallery.com who told me that it was nothing to do with him. I answered him that the paintings are available on his website but he replied his reproduction rights only applied to China. I asked why he then he shipped to the US at which point he cut the call and now ignores my emails.