Pilates is a commitment (see my blog) and I run the class knowing you and I have committed to the term. In the new year we will run the classes alongside school term times, so you'll get regular breaks to recalibrate.
To cater to those who want the flexibility there is a £15 drop-in option. It is more expensive to encourage you to make the commitment, particularly when your first starting. Of course, one-off classes can be a wonderful treat, but if you want long term solutions you need to do Pilates at least once a week.
To book your space you'll need to pay before the term starts.