Hello @sebastjan_brezovec6QQB8, thank you for sharing your opinion.
I believe the suggestions that you received were helpful in some similar issues in the past, that is why you got them in the first place. Sorry to hear that they were not working on your case. I assume that one solution may work for a specific user while someone else with a different configuration but the same issue will need another approach. I am glad that my suggestion helped you as well.
Not sure what happened with the communication in your internal case. It may happen that some filters are blocking messages on both sides but we are trying also different ways to contact users if possible. Sorry to hear about the inconvenience. You can also try to start a chat in such cases.