It seems like there might be a confusion in the terminology you're using. Electrostatics usually deals with the study of stationary electric charges and their interactions, while refraction is a concept more commonly associated with optics, involving the bending of light as it passes from one medium to another. Electric flux, on the other hand, is a term used in the context of electromagnetism to describe the flow of electric field lines through a surface.
If you're looking for information about electric flux or refraction of electromagnetic waves, I'd be happy to help. Could you please provide more details or clarify your question so I can provide you with the relevant information?