SebastianJu, I don't know how much he contributed, but if magum already requested the refund and confirmed he sent the funds could you just tell him that you're holding his refund until he gives you the BTC address and he can't get XPO anymore. If he didn't send a confirmed signature, he's too late. It doesn't make sense to hold up the whole process for one guy. Seems like he hasn't been on for a few days.
I read here occassionally when I have time...

I think I need to hold his refund even through the distribution. As far as I understand wasserman99 will distribute all opair fairly. So after he distributed then magum can not get his opair anymore since the last will I got from him is that he wants a refund.
So magum act before distribution or your choice is gone.