Andrewg, I deleted your first response because it validated the question beginning 'What to do if ...', not because of any consideration of 'speak out/speak up'.
I sincerely thank all for your contribution to my thread and blames myself for my poor english. Infact i have setup a webpage for tuition agency in Singapore and need to write some articles for my webpage else it looks empty. I was wondering if you guys could help me out with writing some good articles about private home tuition/tutor. If you could help, you may include your good name at the bottom of the articles which you have contributed. If you are keen. You may pm me at tianheenterprise@gmail.com.sg. my webpage is www.atutorathome.com.sg. Thank you all once again