There's lots for consumers to complain about these days what with cheaply made products and deceptive advertising. To make matters worse there is often poor or no genuine customer service.
There used to be customer relations personnel anxious to satisfy customer concerns amicably, but this kind of service is disappearing. If they are there it's only to let out a lot of gooey excuses which are empty and frustrating.
My experience in writing complaints has been totally frustrating. I did observe that by addressing a complaint letter to someone high in the organization, it could always be delegated downward, and sometimes the big-wig even replied. Referring to the word 'ethical' seems to get attention and I once received a rebuttal from a corporate CEO.
Some of my complaints about deceptive marketing:
"... the advertisement meets all legal requirements."
"... subject to ethical standards in the industry."
"... our intent has never been to mislead and I believe our practices are . . ."
I see this only worsening as too many consumers are complacent, encouraging more of the same callous treatment.