As a person who has been on both sides of the argument, the hotel should have been warned by the wedding group, but also this is the problem with using the online system to book hotels I took a bunch of navres to Montreal for a weekend competition. During the day, it was quiet, as we were not there to take a group of 18-25-year-olds to a city known for great bars and nightlife. When I booked the hotel, I advised that noise would be an issue, and we were booked on the 2nd floor. Anyone booking was told that it would be better to be on a higher floor. Unfortunately, there was an older Orthodox Jewish couple who could not use electronics. I was at the counter the next morning when they complained to the owner. As I had a government budget, I was rewarned and advised that we would pay for their room if they came down and complained. The hotel got the props from the customer, and all was well