I am not convinced with the explanation from the team. So, I decided to do not to run their signature campaign. Escrow funds have been returned to the team. My bad, I failed to detect that issue before launching the campaign. Hope I would avoid such issues in the future.
Sorry for the inconvenience.
That was the best choice. You couldn't risk your reputation and moreover, you need to make sure that users don't get to advertise shady projects. Don't think too much about what you have done wrong, we all make mistakes, take this as a learning opportunity.