Honestly it shouldn't matter. He still scammed and may stop the possibility of someone getting scammed here.
I can vouch that he has indeed done this. He also tried to charge back geek for $210.
Unfortunately since this happened off-site, this report will simply be a community warning to other members not to deal with Diplo. The staff will not have any involvement, this transaction was not a result of a service offered on NBB, nor was anything said on NBB relating to the transaction.
I hope you can resolve this with Diplo, whether it be on here by any other means.