We had booked an overnight stay at the “Landhotel Storchenkrug” for the following day via Booking.com.Unfortunately, since we were traveling on bikes and had a long stretch ahead of us, we wouldn't have been able to arrive at the hotel until relatively late. We wanted to discuss this matter with the hotel in advance. Unfortunately, the hotel does not provide a latest possible check-in time on its Booking.com booking page, so we messaged the hotel to explicitly state our arrival time after 9 p.m. Unfortunately, there was no response, so we tried several times to contact us by phone during the day of our arrival. After several unsuccessful attempts, we finally put the matter on the answering machine and asked for a call back at short notice.Fortunately, the host actually called back, but to our surprise and rather harshly told us that his hotel was closed today. (!?) Apparently he had neither taken note of the booking nor listened to our message. We then explained to him that we had booked through Booking.com and reiterated our intention of not arriving until after 9 p.m. He said that this wasn't a problem and that we should contact him by phone when we arrived.Knowing this, we continue our journey, but due to a flat tire our arrival was delayed unplanned, so we unfortunately only arrived at 10:15 p.m.The reception was already closed and it didn't open even after ringing the bell several times. As agreed, we tried to reach the host by telephone, which unfortunately only succeeded after several attempts.Demonstratively annoyed, he opened the door without any greeting and described our arrival as an "imposition". We regretted our late arrival, but didn't even get around to saying why. Instead, he explained to us that his "country hotel" wasn't a hotel but a guesthouse (?), that he basically didn't want cyclists anyway and that he wasn't interested in communicating with Booking.com. Contrary to what was agreed, the overnight costs would now not be €85 but €95, and he doubled the cost of the optional breakfast.After pointing out that Booking.com had finally confirmed a booking and that we had therefore cycled through the night to see him, he insulted us, ended the conversation, refused to allow us to spend the night in his hotel and sat down us at the door (!).So after 140 kilometers of cycling with a defective bike, almost empty batteries and no possibility of alternative booking without cell phone reception, we found ourselves exhausted and stunned on the road in the middle of pitch black no-man's land! The closest hotel that could theoretically be reached at this time of night would have been at least 100 km away.After almost 50 years of global travel experience, I have never experienced such behavior.An innkeeper who refuses to book an overnight stay and throws his guests out on the street in the middle of the night, knowing that they have no alternative overnight accommodation, is acting negligently and extremely unprofessionally. Even the understandable displeasure at the later, but not at fault, arrival in no way justifies this misconduct.Anyone who is unable to manage the simplest booking processes, stick to agreements and provide their potential guests with a minimum level of service and professional hospitality has no place in the hotel industry and certainly not on a professional platform like Booking.com.Unfortunately, my subsequent reading of the negative reviews on Booking.com and Google confirms this impression.