Searching for guys to help out with my game

Why was this product released with only just a few hair strands for hair
and was not released with the proper full set of UV head skin maps with full
set of hair textures to cover up also all of the scalp for this guy comes with 4 colors of hair, so there should’ve been 4 head skins with the full hair unwrapped on the scalp.

This makes no sense.

I only have the render pics of his full set of hair, but from what you say, it looks like his hair will have to be painted directly unto his uv scalp map, I don’t really know how
to do that correctly though nor do I know where to find the matching hair he needs
to restore him if trying to uv paint the rendered hair don’t work.