Suppose you have two identical copies of the same, coding nucleotide sequence (e.g. two copies of BCL2 - a random gene I found on Wikipedia).
Could you say that these are two genes (i.e. the name "gene" refers to a specific, physical sequence, and where there are two of them, you have two genes, even if identical)? Or just two molecules of one gene (in the same way that when you have two molecules of carbon dioxide, you can't say that they are two carbon dioxides)?