HC logo plagiarism by Prophet agency

Hi Dribbblers,

Today I saw @Breno Bitencourt shot and was encouraged to bring to light a similar incident that happened with me . My HC logo was copied byProphet Agency for their latest work for Change Healthcare. I tried emailing them, contacting them on Facebook but they have chosen to remain silent on the matter. I would greatly appreciate it if you could help me on this.
Thanks