Terrible service and incorrect information give

We arrived at 9am and pre-booked 3 rooms, golf course facing! Then after playing a Round of golf, we came back to check in and they said our rooms were booked to someone else. We came here in a big group for a golfing weekend, and they give away our rooms that we specifically asked for!!!! The receptionists then said oh well sorry. There is nothing we can do, when it was them who gave away our rooms. There was no customer service! They treated me like a no one, I am supposed to be a guest at a hotel/resort! I felt like I was a peasant! I recommend training for ur staff on how to treat customers. Really disappointed and will not recommend this place to anyone !!!!