I made a template to help speed up the complaints on FT
Code:
As a Silver|Gold|GGL [tick as appropriate] of N years I have already booked
[2 - 4 - 6] flights on [Insert Alternative carrier] .
The final straw for me was [insert final straw].
I only travel leisure anyways and would much rather fly with
[Insert Alternative carrier].
The reason I now fly with [Insert Alternative carrier] is [insert reason].
Please use the space below for ranting about BA
Best
Insert FT Username
Hope this helps