Got their final reply: http://prntscr.com/haoi1r
They preferred to cheat me and not pay me for my work.
They also added saying that they were asked to pay a heavy fine for posting another thread on bitcointalk as their bounty and ANN thread were deleted
http://prntscr.com/hapay5
They claimed to be banned from the forum: http://prntscr.com/hapuhr