Superuser.

Cliff notes.

Some guy high up in company reproggamed/put a trogan in the software that sent the cards back to them and then won several hundred K before being caught. Highly suspected of it being a cover-up, though it's unlikely it was a true inside job (ie. the CEO didn't know). Basically I would steer clear, they're a shady business.

edit: to clarify AP sent all the money back but still it took them forever to admit there was a problem and a better investigation was conducted on 2p2 that in the company with less information available.