But you are taking up a place in a group that could be taken up by someone who would have paid on those weeks. When you sign, ou commit financially and psychologically to you and your counsellor - it is at the LLC's discretion whether to charge for missed weeks (they can't get someone to replace you in class for 2 weeks) - it is, after all, a business and if you have two weeks off the packs for reasons that aren't excusable like medical or personal difficulties, then it is unlikely that you will have the commitment to complete all of the other weeks of the 100 days.