Another example of BA's inflexible systems.
I have recently made two bookings with BA, one an online booking LGW-Malta and another through Air miles for LHR-Vancouver. After booking these flights I discovered Executive Club members can check in online up to 24 hours in advance so I joined in the hope of avoiding the window seat with no window next to the toilet that I usually get allocated.
Wanting to put my new membership number on these bookings I decided to call in at the BA travel shop in Bromley as it is close to my office and ask them to do it for me. There were four assistants in the shop but no customers in sight. One of them was able to view my bookings on the system but was unable to do anything as I had not made the booking in the shop.
All the assistant could do was to give me the phone numbers for the relavant call centres.