Why I won't fly jet star

I am disabled and Jetstar don't have the infastructure to deal with me. Sure they will take my money & load me on, it's that they do such a bad job of dealing with disabled I won't fly with them. A 3 or 4 hour delay is ok if you are fully able but a nightmare if you are disabled. I need an airline that is generally going to run on time if possible. The Airport wheelchairs are not self propelling types of w/chairs, so I need someone around to push wheelchair to toilet. I now book with a full service airline that will generally run on time. TJ