Courses are a multiple of the same service. Packages are the same but allow collections of different services. When "course" is mentioned, the same is applicable for a package.
Redeem a service from a course (when the service was booked from the course)
After the treatment has been completed click "check out and pay"
The invoice in the POS will show the item followed by "- Redeemed" and the value will be £0.00.
Although there is nothing to pay, you must click "Take payment".
The payment method will show the name of the course that the service was redeemed from.