Nothing, absolutely horrible communication with a customer!

I have booked my stay and money were charged immediately. I called them then to let them know at what time I will arrive. They said “no booking reservation” and hang up. I called again, now a woman answered, I explained the situation again and asked if my arrival at 19:15 is OK. She answered “noo booking reservation” and hang up without even asking something like “when did you do the reservation” or saying “good bye”. Absolutely horrible communication and customer treatment. I never saw such a arrogant approach by a hotel. Then I had to book and pay another hotel which was fortunately fine. This one never again. I will claim the money you have charged.