Fine and hospitality

I booked a room for the 28/05/2022, The security said we were making noise and asked us to keep it down which we did. Everything was fine on the 29/05/2022 I get a call to asked if I checked out and left the key which I did. Today I get a call saying we reveeived a fine for making noise which we did not acknowledge or sign for, We felt like we were not wanted and used as a scapegoat, Why was I not told I need to pay a fine before I checked out or anything? Next thing I get told money needs to be paid by end of business today. I feel that this is not right as a fine can't just be given like that and we treated unfairly and intimidated by security as they came with guns, We were not a threat or criminals as this was a very terrible experience.