Invalid 76561198058326727 Pti4ka Tf2outpost ban

Hey. I have ban on tf2outpost.com trading site and reason is like im on probation..
i dont understand why i have ban..
i try to add one person is working on this site and he or she looks like block or ignoring me..
what i must do?
Maybe you ask them what is going on??
steamID: Pti4ka
steamID32: STEAM_0:1:49030499
steamID64: http://steamcommunity.com/profiles/76561198058326727
customURL:
steamrepURL: http://steamrep.com/profiles/76561198058326727

To be on Valve probation you must have done something wrong. Your ban will most likely expire when your probation ends.

There is nothing we can do here about your outpost ban, we are not TF2OP.

valve probation = contact valve,

marking appeal as invalid.