If you have something you want me to understand, please explain. I'm happy to listen to what you have to say. Like everyone else, I'm not perfect, sometimes I don't understand things and I need some help from people like you.
That's not correct, as a show of good faith I've explicitly asked for specific details on what the complaint is. I can't help you if you don't provide those details. If it seems I haven't done that, I apologize, that was not my intention. I'll try to be clearer next time. Let me know if there's anything specific you want me to clear up.