Language barrier or not as far as i know code is still written the same way. The least the Facebook guys could have done is ask for details not just reply this

Language barrier or not as far as i know code is still written the same way. The least the Facebook guys could have done is ask for details not just reply this is not a bug. And once you fix a bug reported by someone you don't get to deny their bounty. The best you can do is complain about the methods used to demonstrate it. You're not in a position to fk with hackers we are ultimately the ones helping you. We have something that is ultimately more valuable on the black market that Facebook are paying us so they should be handing out bonuses not stealing what we earned.