But note that red trust hardly be removed if your reason for the removal is not satisfying.
It's advisable not get red trust than having one because this is usually giving as a result of suspicious and malicious act by users account.
When you have Red trust follow the step below to rid of it.
1. Login your account
2. Click on your profile
3. Click on the Trust
4. You will see the person that gives you the red trust, Click to open the users profile
5. Send a concrete reason as message to the person on why you want him/her to lift the red trust.
If your reason is satisfiable to him/her the red trust will be remove.