I have not received a confirmation via email of pm that he has even acknowledged since his 'repayment' posts. It would be nice to see a simple 'Got it- your on the list'. Feel free to pm me if anyone has any more information concerning btc-arb's administrator. I would like to take other routes since this last one seems only pointless.
I never received an email either, just the payments. I agree though, not knowing for sure that you are on the list is a major frustration.
I received an reply on my PM on June 13th stating that I would be refunded in the next week, I received payment today.