I can only recommend the gentlemen of Sdrive!!!
I found the phone number on Google and have also directly had a reviewer on the phone, so far so good. Since I had to work, I could not meet directly with the gentleman. The appraiser has then offered me in my lunch break to come to me in the company to record the damage (great! I would not have thought). This worked wonderfully. The surveyor was already waiting for me in our parking lot. Then he took his photos (about 20 minutes) and I could continue working.
Now come on, the same EVENING I had received the appraisal by mail, with a lawyer in the CC, who took over the communication with the insurance company. World class!