Carpetbaggers are planning their fightback following a series of blows from pro-mutual Portman Building Society.
The internet site co-ordinating the demutualisation attack Carpetbagger.com says it may lodge a complaint to the Building Societies Commission against the society.
The move follows Portman's scuppering of demutualisation resolutions and the ousting of carpetbagger ringleader Richard Yendall.
Portman is continuing to refuse help to demutualisation campaigners or give any reason for its actions.
Yendall says: “The Portman directors seem to be afraid to hear the members' views on this issue and stand accused of protecting their own positions at the expense of members' best interests.”