I believe some of the bounties have ended and some are still ongoing, per their website, I would double check and hop on Telegram if you have any questions.
I already many times addressed and wrote to them, but they told me whether you used all the limits that you can apply or you do not have the correct retweets or tweets. I generally realized that people in this company are not allowed to work normally.
I have had some bounties like the Reddit bounty not work properly at first. My hope is that they will go back and fix it and address community concerns. Their bounty is not likely their number one priority, but a formal statement explaining how they plan to handle it moving forward would be a great first step.