We had a terrible service experience in the spa on Rotterdam. Many things went wrong regarding overcharging. DH complained several times to the so called Asst Manager there. She complained back arguing that we should back off and respect that she is a manager...🙄 One time the hydro pool closed very early. When you have already paid for your time, that isn't acceptable. The spa did nothing for us. DH talked to the Guest Services Manager a few times, and she did manage to get one days' worth of spa entry removed from our bill.
Check your bill thoroughly while in the spa!