More details:

Same journey/ same fights/ same cabin

The 241 was used with me and Mrs Henley. Miss H was separate.

The booking are linked in "the BA system" but as the agent mentioned, this is only for internal purposes and doesn't help the customer at all.

I am Gold.

I am also worried about if flights are cancelled or there's an aircraft changed and seats are reassigned so we wouldn't then sit together. I mentioned this to the agent and he said that would never happen. Then I pointed to our flight to MCO in March where we are not sitting together because of a BA cock-up.