Payment is on an honest system, and we assume that you are continuing to make your payment for your training sessions.
It is up to the individual to keep track of how many sessions he/she has attended before you need to go and pay again.
To help you keep track of how many sessions you have attended, the purchase will allow you to download a sheet that you can mark off each time you attend a training session. It is suggested that you keep this on the fridge, the car, swim bag or in a conspicuous place so you can mark off as you go.
In addition the sign in form will remind you and ask you to confirm that you have made your payment.