Supplement 10:04.
Here the opinion of the manufacturer:
>> Good day,
Thank you for your inquiry. You can lodge a complaint by writing the Amazon customer service and introduce the event there. Please refer also: [blah-Link]
From a general problem we do not know, but I'll post your feedback on to our quality assurance.
Should you have any questions I am happy to help.
Yours sincerely
Hendrik Maier
So the one point to the other. That was my first and last items of this manufacturer. So bad service I did not expect