Hotel THE ROYAL PARK a Kyoto

I've been to Japan more than 5 times and have always stayed at the Royal Park group hotels as I've always had good stays. However, this was the worst experience I've ever had with the hotel reception. We booked two rooms (exactly the same standard twin room) and upgraded one room from the 2nd night onwards of our 5 nights stay. On the 2nd day of our stay I went to the hotel receptionist (it was a different person who checked us in and registered the room change) to change the room and realised then that we mixed up the room that was to be changed as we were travelling as a family. I tried to explain it to the person at the counter but was shocked to be treated so rudely instead. He even threw the change of room slip on the counter and refused to talk to me at all even after I kept apologising and saying I didn't understand what was being said and to explain to me what happened. I was so traumatised after this experience and will never be going back to the Royal Park franchise anymore.