Nice hotel - bad service

Nice hotel - bad service
At the beginning of February I booked a superior room (mostly with side view of the Rhine) for the night 04./05.05.19 (Rhein in Flammen) to spend a relaxing sauna evening in the Kameha. I have received a written confirmation that the spa area is open until 10pm. I have called several times to find out if there is again a Rhine in flames Spanacht. After you could tell me no decision, I have asked in writing for an info when it comes to a decision.
At the end of April I got an advertisement mail from the Kameha with the special events to Rhein in flames .... u. a. with the information that the spanacht was booked. My endeavor was with a ".... we are sorry" rejected. Afterwards I got the information that we have to leave the spa area at 18 o'clock.
Since we have booked the night only because of the use of sauna, we could check in at 16 o'clock at the earliest and at 18 o'clock the sauna area should leave again ..... our anticipation was very limited.
The service staff was ONLY sorry!
Only when we addressed our displeasure to the hotel manager, we could participate in the Spanacht.

We got a room not with a side view of the Rhine, but with construction site view (room 365).
At night, at 4 o'clock, 5:30 o'clock and 7:30 o'clock the light in the whole room turned on independently .... which of course us each from the deep sleep tore.

At breakfast in such a hotel we did not expect, that we have to run behind cutlery and clean cups.

Just under 500 for a night with a good night's sleep are too much for these services.