I sold my domain through escrow.com and the cheque was released on 28 september and i still havent recieved it. I have dropped them couple of support msg and i still havnt got any reply.
I suppose that is the only way to try to get in touch with that service. Just have never heard before about it and I suppose that better sell domain names through places like domainnews forums namepros or SEDO
It's hard to solve if you can't contact them successfully.So keep on looking for them to solve your problem. Use all the way you can use.
I've been using escrow.com over 30 times, and they are very reliable and efficient. Their fee is also lower than sedo