At present one person can use multiple accounts in Bounty camp in but it was not like this before so is the quality of our work decreasing day by day I request moderators and those who are in higher position to control this work
If you're reporting about a user or someone you know to be abusing the campaign rules by using multiple application on thesame campaign, this is what you should do.
1. Inform the fampa manage through PM
2. Create a thread on reputation and have enough evidence that connect the account together
3. Make sure you're sure and very sure about your report because such accusation.
Note:
Having alts account is not against the rule but participating the alt account on the same campaign is totally against the rule, there are other threads meta and reputation whereby you can report such user.