the only way you can get him or her to remove the trust is by asking them, but most of the time untrusted rating dont mean much, if they are just trolling then report it
Try reading the OP
I have recieved a +ve feedback from a Hero member on 3rd of Oct and it is consedered as untrusted feedback
it is very warthy for me because I want to build a reputation for me
please help
You need to edit your trust settings by adding the members name to your trust list
Profile-->Trust-->Trust Settings
Then only the OP will be able to see his much desired +
I have recieved a +ve feedback from a Hero member on 3rd of Oct and it is consedered as untrusted feedback
it is very warthy for me because I want to build a reputation for me
please help
Just because he is a "Hero", doesn't mean he is on the Default Trust list, which is where he must be for the trust he left you to show as a +.