The vendor software just fills in your logon name as a member name. However, if you have a common logon name, chances are that someone else has already claimed it as theirs. All of the member names must be unique. So if you just change it to something unusual and/or add some random digits to it, that should solve the problem.

A related thing that happens is that some people think they actually registered with the member name that someone else already uses. Then, when they go to the web site to sign in to see their statistics, they find their password does not work. They invoke the recover password function. But, the password is sent to the original member. So, if you sometimes receive an unsolicited email for recovering your password, now you know why this might have happened.

Sorry about all this. That is just the way the software is designed. We have ideas on our future list of possible things to do which might simplify and eliminate some of this confusion.