I've been using WoW mine for a long time now. Bought lots of gold from them on EU servers.Never had a problem (Havnt used it since the new mail system changes)
But recently, i decided to test it on my new US account. Since the price was high i bought 20g for $2.50 just see if it works.
Going on more than one week now, No gold. Contacted their horrible live support a lot (and sometimes cant even get in because of the long queues).
And every time their live support guy disconnects me with a Auto Reply "I am not qualified to help you blah blah blah...".
They told me to make a duplicate order without paying etc (done it 7 times already) and still no sign of gold, although their delivery status says delivered.
So to sum it up. Wowmine on US servers = Horrible (at least for me).
Customer support = Horrible (used to be ok)