Hi Thorsten
Please note, i do not expect an immediate response from you.  I am not expecting you to work 24/7 so i do not understand your response, as there was little need for it.
I also do not understand why i would have to send a private message about something as critical as certificates, which involves all master trainers. 
I have now asked 5 other master trainers and no one has a clue, so i thought it would be wise to ask here, therefore we can all be updated with information. Less work for you if we can all share what is happening and i can update my students.
Thank you!