Explanation: I was selling 15 cardinal ruby ​​for 8000 g, MYALTBANK wrote me that he would buy them all. During the trade I put 15 cardinal ruby ​​and MYALTBANK player 8000g in my window, at this moment I was satisfied. In time 0:19 MYALTBANK changed very fast 8000g to 800g and again typed trade. He relied on me not noticing and accepting the trade. After a few seconds MYALTBANK canceled trade and said: "Sry i am lagging." Next trade i was ready for the same trick. So i quickly removed cardinal rubies and hit trade button. He didn't expect it and trade his 8000g for nothing. What he wanted to do to me, I did to him - scam.