Hey,
I just wanted to introduce myself, I am Scott and I am a lawyer. Long story short I have a ton of experience with different airlines and I know how do you feel when they are ether ignoring you, or making you feel like a fool. So if you are looking for a quick, cheap and easy way to make airlines pay attention at you, you should use flight compensation companies help.
I have reviewed most of the flight compensation companies in one place and you can have a look at the "best list" filtered by an airline company here:
https://euflightcompensation.com/airlines/
I hope you will not see this as an advertising, I am just here to make your journey through these complicated processes simpler.