Since you're online on both an alliance and a horde toon just use:
/who Stranglethorn Vale
/who Tanaris
/who Winterspring
on both toons.

If there is a character in one of those areas, with a level that doesn't fit in that area you could go check it on a third toon. If there's a lvl <10 in one of those area's, you can be pretty sure it's a bot and you can't transfer items savely.

They use a bot that buys anything on the AH that is a % cheaper then the normal price on the alliance / Horde AH(So it doesn't matter if you price things at 5 copper or 10 gold for this bot). Since it will automatically buy cheap items, you pretty much can't be faster then the bot. My advice is to just wait and try again.