I would document this objectively, and factually, sending the original to the TAM office that did your booking.

My experience: I had a nice broken seat in the perma-rest position on a 10 hour flight. I had to sit forward the entire trip, and my shirt and slacks took a bath when the passenger in front of me tilted his seat back with my juice on the tray in front of me. The young FA serving us could have cared less: " Oh, really ? "

Upon arriving, I notified the main FA in Business, who finally noted the seat. Doing significant business in Brasil, I was told by the president of a Brasilian company to notify TAM. He was more upset about this conduct than I was. 3 letters later, I received a curt letter offering a 20% discount as compensation on my next flight with TAM.

Your documentation and expense copies may be more rewarding for your efforts.

They say Never say Never, but I have researched my alternatives, and TAM is no longer in the business itinerary effective January, 2012.

Oh, how I miss Varig.