im having the same problem. I have a post up above as well. I have appealed and havent even gotten an acknowledgement that its been received. Ive looked online and apparently this has been a known issue with the automated system. It senses you are doing something nefarious when you are not. In my case i have simply been sniping cards, buying low and selling high, which is in FACT the nature of an auction house. To make matters worse EA makes it impossible to get any resolution. The auction house is my only means of remaining competitive as i do not spend money on the game. If they dont resolve this they might as well give me a refund