Hello I have a problem when trying to let people signup as members i tried adding the member with the old way(its out commented) but when i get to the line CreateUser then it throws an exception saying Duplicate User name! A member with the user name test already exists. And no matter what name i use it keeps saying that. Can anyone put some light on this issue

var mt = MemberType.GetByAlias("ForumUser");

var addToMemberGroup = MemberGroup.GetByName("ForumUser");

//create a member

//var m = Member.MakeNew(Server.HtmlEncode(username), mt, new umbraco.BusinessLogic.User(0));

MembershipUser user = System.Web.Security.Membership.CreateUser(username, password,email);