In most cases, those who got negative trust are those who have done illegal doings here in the forum. First of all no one from the DT members will give negative trust to you if you didn't do wrong. In your case its account buying which is strictly prohibited. What can you do to remove the negative trust? NOTHING.. just make another account or continue using your account. Maybe PM @actmyname and do some magic tricks..

In your case, I should say it will not be removed. Like I said earlier, your case is one that is strictly prohibited so it will not be removed