First of all, sending payment to the same address doesn't prove they are alt. So let Kemarit take advantage of the doubts. But it seems there is clear evidence Jating and Baofeng used the same address. Since they have been enrolling in the same campaigns, they already broke the campaign rules. They are abusing the campaign, which should consider shady behaviour. Campaign managers would leave negative feedback from their ends first if they want to do so.

I have sent a DM to both, so they should reply here and explain the situation. Otherwise, they must deserve negative feedback, and probably I will take a deep look at this matter if their response isn't satisfying. How stupid they are; there are a lot of different campaigns, and they could participate freely. It means it's not necessary to abuse a campaign anyway. To me this is punishable offense.