How investor can file consumer complaints?

How to file consumer complaints? Misselling of financial products is very common today. It seems it is very easy to convince customer for purchasing any products. Recently my friend called me up and he told me that he is a victim of mis-selling of insurance policy. He is confused and don’t know what to do now.

Similar to my friend you might come across a situation where you felt disturb about mis-selling, cheating, faulty product or dissatisfaction in services. In order to help you, I am herewith step by step guide How Investor can file consumer complaints?