Will I have to pay more per level?

No. However, following the completion of all of the levels, there is an educational workshop/retreat, which consists of action and/or sitting meditation; it is considered the finalization of the program. These educational workshops are held throughout the world (with educational programming, room, board, and airfare it can be costly (however reasonable when you compare the cost to other yoga/ mediation retreats). The money from these retreats is used directly to fund new centers worldwide or support centers that are struggling. Your attendance is optional of course, as with everything related to your participation, however, after experiencing the benefits and authenticity of the method following the completion of the steps, it is rare that a student chooses not to attend.