A LTL Flexi Classes Subscription allows you to be a member of the Flexi Class system. With this you will receive new credits every month. You can use those credits to book classes. Different classes are charged different amounts of credits. For example a one hour small group Chinese class costs 1 credit, whereas a one hour 1-on-1 Chinese class costs 3 credits.  You can cancel or change your subscription at any time.  Before booking a class you also always receive a confirmation message telling you the number of credits you will be charged.