5 classes paid up front. You can either book all 5 classes and put them in your diary = more likely to do it? Or book one at a time. . This should make life easier for you and can be used for multiple bookings.
You commit to train and benefit from a wee discount. Less hassle than single payments and bookings, win win.
4 class pass for Bootcamp (Wednesdays and Saturdays ) plus all yoga. 6 weeks limit per pass, classes don't all need to be booked at time of purchase.