Originally Posted by
blindman
If I book a Japan domestic one way trip for 2 pax using Avios it will cost a total of 9000 Avios + a cash component of £4.00 ^
Is it true that if I then subsequently cancel it in order to get the 9000 Avios back BA will charge me £25.00
Doesn't make sens to me

If the cash component is more than £25 you will receive the cash component back less £25, if it is less then you simply don't get back the cash component.
In your case, you will get back 9000 avios but forfeit the £4.