Thank you for bringing this up here on forum!
Message system and the chat widget are separate features, and it's good to hear of your experiences with these tools.
If you have more feedback, please contact game support about bugs - or use this thread to give us a more general image of how you use these tools and what is missing. I'm sorry to hear of these issues and I'll be sure to forward all your feedback!
Based on the comments so far (not just this thread), the browser version has a chat widget that works and also the message system is in good use - but the app version has its issues?