I believe that I have seen an advert by the International Correspondence School that offered A-level Arabic (ICS). Look in newspapers for their advert. Also check out Floodlight the magazine that advertises courses throughout London and the regions. Failing that ask at your local library the reference section will probably have information. Good Luck P.S. Linguaphone do Arabic up to A-level standard you can then arrange to sit in at a school and do the exam.