After I had completed the manufacturer's contact form on its website, at least I have 5 years warranty from the manufacturer, I received the email that a notification of the request for support is not possible because this email address is not known (!). That got me thinking.
Meanwhile, the manufacturer has responded and referred me to the supplier Randen. This map is now already for about 2 weeks. Will there have to ask times.
After 4 weeks of my purchase amount has now been credited.