From the very start ask your bounty manager if the rules are already firm and final.
But the sad thing is before you are going to ask them, you'll see one rule that allowed them to change any rule as they wish.
The project team has the right to change any rule as they wish is the most rogue rule, it is tantamount to telling you that even if we dont pay, its reasonable. And there are indeed many of bounties changes in the middle or after the end of campaign rules, resulting in many bounty hunters not getting paid.