Is it okay if I refuse to give my grandma's friend information?
I'm hoping we can figure this out. Can tell me why you don't want to give your grandma's friend information?
Yes, I'm hoping you can too. I hate her due to the fact that she drove everyone away
Even if you have a personal dislike of your grandma's friend for her past behavior, it's rude not to help her out since she is a friend of your grandma. You should help out family members as best that you can and this includes helping people in their social circle since it reflects back to them. You should put aside your personal feelings about this person and give her the information that she needs so that she will be happy and your grandma will be happy.
Nevermind, I'll just deal with it.
Good, it sounds like you're willing to give her the information and that's really cool of you. If your grandmother likes her then you should at least be willing to give her a little bit of information.