Univiting A Bridesmaid Or MOH

What would be the appropriate way to uninvite a BM or MOH? I would rather have them attend the wedding rather than be a bridal party participant.

My MOH has been dishonest with me about somethings and have drawn a distance with me for some estranged reason. Really not sure but this not someone that I can depend on as my MOH.

I also have a BM that has been non-responsive to me.

Please help!