@ms_moderated Hi if your user name is your phone number I would change it as this is a forum and it is is security risk to post personal information such as Account and Phone Numbers.
Try this link to for the information on changing your password.
I have changed your Yes Crowd username for your privacy and security.
You can change it again by going to your Profile Settings in the top right hand corner.
If you need help with this, please let us know what you'd like your new username to be.