I been banned for 1 year. 1 year ago, I don't know what scamming mean until I read steam guide about scamming. I won't do that again. I accidently remove trade. I have trade waiting and decide to donate Dispenz0r my useless cosmetics. I click accept then message appeared (I don't remember what it said) then I click it. It remove key donate trading. I got very confused and trying to change owner's mind about it. But he banned me. 1 week later, I was very tired of banned and I was not patience, I trading my keys for expensive weapon.