The crazy thing is they replied, but refused to take me off the list unless I sent them an actual physical letter in the post. A few emails in they claimed it was due to a "technical" issue. That BS annoyed me so much, I am now into the 3rd decade of my own personal British Airways boycott
Edit: I realise that's insane but it makes me giggle everytime I deliberately don't book BA, and I wonder to myself how much money I would be willing to loose by going for the next most expensive ticket, just to keep my boycott going