Claire1234
As someone who pays for and travels in business class about 100 times per year, airlines are some of the worst service providers I have to deal with, beaten only by utility companies in customer unfriendliness.
I have had my flights cancelled and been dumped without support in cities thousands of kms from home, denied boarding due to the airlines inability to sell the correct number of seats on the plane etc etc etc One airline even gave me an economy class boarding pass without having the courtesy to tell me I have beedn downgraded.
And that is paying for premium class.
Unfortunately for you, you pay for economy travel and this registers even lower on their radar, as most Y class travellers are fare sensitive and disloyal. You fly 9-10 times per year and this income to AC is probably 0.0000008% of their income (I made that up), so the company doesn't share your view that you are helping them to keep flying. I believe that airlines are wrong to take this view, but there you go.
The problem you have is that the airline regards you as a person it has transactions with, not a relationship with.
On personal level, you may find the cabin crew very nice, but the 'corporation' does not recognise you as a potential source of regular and high income, so you are processed as a number. The same happens to me with airlines where I am not recognised - you would think that paying a large sum of money for ticket would buy great service, but sadly ths is non sequitur.
For you, I am afraid that you need to be realistic and reflect on very low cost per km fares, which is what this business approach delivers.
I do hope that you have a more pleasant passage back home.
Welcome to PPrune and don't take the other comments to heart.