Have an Avios booking in J on BA188 JFK-LHR 14 May. Manage my booking says "upgrade not available".
Is that because all 8 of the F seats are full or is BA obliquely telling me that they are holding the odd empty
seat or two for somebody with higher seniority than my lowly Gold status?

Don't sugar coat your responses - I can take it.

Is it worth a call to the Gold line?