Another option is to take French classes over Skype. That would cost you much cheaper and get the job done. You can get an internationally recognised certificate by sitting for one of the French diploma exams such as DELF or DALF.
Frenchfaster French Language School in Singapore - www.frenchfaster.com - is an excellent choice for those who wish to learn French faster, smarter and cheaper.
Frenchfaster uses an accelerated learning approach based on Constructivism, Participative Learning and Learner-centered teaching to get students to learn French 3~4 times faster!
Private one-to-one classes available from S$20/hour.