Nordsee Hotel Fischereihafen

Basically, I have been happy with the Nordsee Hotel so far. I booked it primarily because of the gym next door, which is included in the price. Overall, the hotel is showing its age. I couldn't really sleep on the first and second night of my last stay because the window was completely leaky and there was a loud draft. When I asked the next day, I was told that the caretaker couldn't do anything, they were just old windows. I was moved to another room. My girlfriend slept in the hotel on the last night, one of two, and had breakfast with us. Now I had to pay an extra charge because I didn't book it. OK, I said, let's offset my 7-day stay in January against that... I paid for seven days and seven breakfasts and was alone. That wouldn't work and I would have to prove that I was alone. The employee in January, I can't remember exactly who, told me that I could say that on the next stay and then offset it. Maybe he just didn't feel like rebooking at the time. Of course I could have said it straight away, but I forgot about it. Now the employee is starting to address me informally and I have to pay for it. I said I don't have to do anything... Then she called her boss... He confirmed that I had to prove that I was alone in January... I think it's a disgrace to treat guests like that. Of course a company should think economically, but can't the hotel accommodate the guest? Why was the guest accused of lying by saying that she could prove that she was alone? I'm excited; they're going to get in touch with me tomorrow.