Does anyone know if it is possible to change my unique identifier? Mine is linked to an old twitter account which is not the name I use any more. Sorry if this is the wrong place to ask, was not sure where it should go!

Thanks

@amyhallbiz I mean on this site. “amethystsocial” is a redundant Twitter name which is no longer my business name or anything else. 

I want it to be so people respond to me as @jennyb (or something) not @amethystsocialm like I this thread. 
I’m thinking i might have to delete my account and start again?