Thanks raffele
I wait until next week before following up.
The more I think about this the more I'm confused about how this could have happened. As mentioned the outbound flight to Vancouver, and the inbound flight from Los Angeles are on two PNRs. How in H*ll can one of the two seats be changed on both. On the Vancouver flight we lost 28B, replaced by 28D and on the LA flight 28C was replaced by 28G.
I remember a few weeks back some comment was made to a Ppruner by a flight attendant that 'someone' at Head Office was doing what they could to deny seating requests if the were for high status Executive Club members. I searched but couldn't find that post - but I recall most people expressed disbelief that that could be occurring.
Having it happen to me twice makes me think. I made both bookings when I was Gold (I've now reverted to Silver). Is somebody at BA intentionally trying to piss us off? (I'm not accusing the company, but is there a rogue employee with an axe to grind?)