Pathetic service

I paid for a Fully Body massage at this Spa a few months ago. I send them a mail asking about a date available. They didnt respond to my email. But book the appointment without confirming with me. When I followed up with them they said that I didnt pitch for my appointment and now I lost my money. They didnt confirm it with me so how should I supposed to know I must go? I asked in several emails I want the managers email adress and the confirmation email that they send to me but they are just ignoring my emails.