Hôtel Beauregard in Paris

They put me in a room with a window facing a wall, so no Eiffel Tower view for me. For the first two days, they didn't take my key, but on the last day, they insisted I leave it at the front desk, even though I wanted to keep it. The front desk was very firm, so I left it. But when I came back around 10 PM, no one was at the front desk. I waited for over ten minutes and had to call them before someone showed up. The second-to-last morning, I found bed bugs on the bed. I told the front desk in the morning, and they said they'd check, but they seemed very disbelieving. However, I'm absolutely certain they were bed bugs. As soon as I found them, I immediately packed my suitcase and put it in the bathroom, then blasted it with hot air from a hairdryer. When I got back, I noticed the sheets hadn't been changed because the stained areas were still stained. The front desk didn't give me any feedback when I picked up my key. Housekeeping was done daily but very carelessly. On my last night, I slept with my clothes on and the lights on, feeling very anxious. Overall, the cleanliness and decor looked okay at first glance, but a closer look revealed the headboard and bathroom walls were quite dirty.