As my guest did not discuss any of these "issues" with me... I do not understand what the problem was. I helped him log into our Virtual Private Network for his wifi use.
I do not understand the problem with the size of the apartment, the bedroom is quite large, apartment has a separate "sitting/TV" room and a small, fully functional eat in kitchen complete with oven, stove, coffee machine, etc. Overhead fans and windows everywhere, unbelievable closet space... private entry area... and photos are quite accurate. Wish I had more information in order to understand where the shortfall was. I live in the house and am generally available 24/7 to communicate. I used my leftover ability to speak German with Dieter. He made no further attempt to call or text or knock on my door for anything he might have needed.