British Airways,

I thought I'd take the time to write an open letter about how much your service has left me exasperated and disappointed, as it seems the traditional channels of communication with you simply result in automaton responses.

You have absolutely sucked. Allow me to itemise how:

1) You want an additional $150 for me to pick my seat for a business class trans-atlantic flight.

2) Apparently my executive club 7-day-in-advance seat selection privilege no longer applies to me.

3) When I phoned to say I have been a 10-year customer and this is my emigration flight, if you could possibly let me choose my seat for free (I have several medical conditions), you effectively just went 'computer says no'.

4) When I asked if I can use my Avios points to upgrade to First, you again effectively said 'computer says no'.

5) Your email response when I stated this was 'computer says no'.

6) Your checkin website is broken and I had to work around it by editing your HTML in the browser.

7) Your mobile app is also broken and wouldn't let me checkin there either, nor retrieve my boarding pass.

I want to let you know that in future, any time I have to fly with you is absolutely not out of my choice. Obviously you are of no need of my custom, you do not care about my loyalty and therefore I have cancelled my BA Premium American Express with you and I will be taking my multiple £$thousand's to literally any other airline except yourself.

All the best with your future business.

Kind regards,

Mat