Thank you for your answer.
I am well aware of this. I think to make this public is more effective as other users will like this also take the action to contact them or contact them again if they did not so far because of this topic. This, is actually how things can happen. Single requests will of course be ignored. If more people can get mobilised... it is more difficult to ignore. I have of course contacted them before and had a long very unpleasant conversation filled with many automated emails, the same emails that you can read by other members that posted similar problems.