I ignored my mother when she asked for help
That doesn't sound like a good thing to do. What did she ask you for help with?
She asked me to help her with some chores.
While I would be hypocritical too say that I haven't neglected the needs of my parents, I think you should just strive to do your best to help them whenever you can. Instead of you ignoring her next time, I suggest that you make an effort to help her with the chores as she may not have anyone else to help her do it.
I just didn't want to do it.
You should do it anyway. Helping family, especially immediate family, should be a given.