In your site, go to edit > dashboard and make sure you have her as an invited guest. If not do this. Also click on "newsletters" and ensure that her name is ticked.
Tribalpages probably thought you could do this yourself whereas in my case that was not possible without the help of the owner of the tree I opted out from. I was having trouble contacting that person.
Try that, if it does not work then you will have to continue asking TP for support.
TPSupport: Thanks for the reset.