AN doesn’t pay

Sold a domain long time ago, the buyer paid and I pushed it to Afternic. I have nothing else to do. But Afternic doesn't make any attempt to pay for it. Although they try to pay for another sale. I want them to pay for them simultanelously, but they mark that sale as "undefined", which means I think, the buyer is not taking the domain.
Sedo is much better in this sense.

Is this acceptable? Please vote.

AN doesn’t pay