I can't change my email address HELP Please

I’m trying to change my email address on my account… But it won’t let me change it…(It would allow me to change my screen name and password),… I’ve gone to Edit account settings and my old email address it there but I can’t change it to my new email address… Can someone help me?

Hi, I’m thrilled you love Tessa… It’s good to hear from you… I did contact BB about my problem. I hope they correct it soon… I’m not getting any of the replies to my posts in my email…