The majority of Investors do not know about the existence of the ICCL. If they were known about, I would say that many investors that have been subjected to incorrect procedures would have gone knocking. Let's face it and from reading about past cases the FSOB is not what you'd call user friendly for persons that have been missold Investment products.
As for the Central Bank and if contacted by an investor, they will quote some section of some act and a sub section which covers them from releasing any details and allows the offenders off the hook. Pure Gobblegook in a Banana republic.