My daughter is still wetting her pants and trousers despite being asked or taken to the toilet. Today she was at nursery and wet herself on purpose. I have tried talking to her about it. We have been potty training for 9 months now and I really do not what I am doing wrong. I have tried reward charts which she wasn't interested in, I've tried asking and taking her to the toilet and she fights with me that she doesn't want to go. I have even removed treats. Could it be something more such as autism???