They downvoted multiple posts and all comments 12 hours before payout. This indicates a targeted action to reduce all rewards without time to re-upvote or address grievance. It's possible the remaining posts will be flagged in that timeframe. Without any communication from the account clarifying their actions it's not worth the time and effort to facilitate the contests with risk of flags negating payouts and losing my paid upvote investments.
RE: Contests Flagged