I was notified at the last hour to reschedule

I booked two months ago at Finesse Beauty Centre for Spa treatment with my family. I had paid already for the services. I had booked for an a appointment at 10 am for the 24 October. My family and I reserved this day for a family outing. I get a call Saturday morning at 9:40 am while we were heading to the Finesse Beauty Centre. Gillian calls me to reschedule my booking for another day, then I asked for them to move other people who had booked after us, we were the first people for the day, I feel they was a preference over us. And they couldn't even make a plan maybe tell us to come in and they'll sort us out in an hour. We were at the last hour and I would to be refunded by them.