it really hurt when I worked on the bounty program until it ended,
and the prize was not given to me, yes it was the most painful experience I have received,
but I am not easy to give up, I am still trying my luck at the bounty.
I know how you feel, i had the same experience, and more than once. For those bounty projects i don't get my pay, my method was blacklisting the bounty manager, maybe some are not manager fault, but i still don't want to work with them. I don't give up too.