It is incredibly stressful when you realize a booking error right after hitting the confirm button, but there’s usually a small window where you can negotiate a fix. I was reading through some
hotels com reviews to see how their customer service team handles these kinds of accidental date swaps for loyal members. It seems like if you call their support line immediately, they can sometimes reach out to the hotel manager on your behalf to authorize a one-time courtesy change without a fee. It never hurts to be polite and persistent with the representative to see what they can do for you.