Complaint Review: Continental Academy

In November 2009 my wife enrolled into High School diploma program in Continental Academy. Their web site stated that the school was accredited by official regional South East  accreditation body (I do not remember exact name). It was true on November 2009 (I verified their accreditation). But in December 2009 this accreditation was revoked from Continental Academy (or Continental Academy withdrew their  accreditation by itself). So, their diploma became completely useless. But Continental Academy did not inform students about this change. Accidentally, 6 months later I found this issue. When my wide called the school with demand to return tuition, they refused. My wife filled chargeback claim (she paid by credit card)  and she was lucky - the bank returned all tuition fee after 2 months of emails and phone calls (we had all paperwork and the documents from Continental Academy stating that the school is fully accredited).