Strange application of extra leg room charge on QF domestic

[Stevo.1702]

Not sure if this belongs in the QF IT gripes thread (like most things)

Booked some flights for 2pax in October next year. I am QF WP and these were booked as Classic Reward economy tickets.

CBR - MCY on QF1766 (717) - No charge to select exit row - extra legroom seats

MCY - MEL on QF919 (737) - No charge to select exit row - extra legroom seats
MEL - CBR on QF1528 (717) - $15 per person to select exit row.

Seems like an inconsistent approach for extra leg room seast. Are there any extra rules/tickets for sectors where they are free vs when they are selected at a cost?

 

[serfty]

Maybe MCY?

 

[zig]

I have BME - PER booked as a classic reward. QF wants to charge me $15 to select exit row seats. Flight is operated by QantasLink - is this the likely reason, or just an IT glitch?

 

[Stevo.1702]

I think serfty has the best answer so far. Only common factor in my case is MCY.

Flight up in Qlink with no fee. Flight back is mainline with no fee