Here's where I would usually write my snarky "Goodbye Cruel Airline" note.
In your case, I feel moved to hold back the snarkiness. You are not satisfied and for good reason. I feel your pain.
Moving to another airline that better suits your needs might be your best course of action, rather than wasting time trying to complain to a very large company. What is your time worth?
I would just cut and run. Goodbye Cruel Airline.