Originally Posted by
gingerlucy
Even once it updates to Silver you may find that you can't select seats for free on an existing booking.
Coincidentally, I flew Monday evening and got the tier points I needed to make Silver before my collection year ended today. Phew - just made it! Anyway, the tier points credited yesterday but the website still said I was bronze (although, as shown above, it does say "You have achieved silver" elsewhere on the page). Today, the website and app updated my status and I went into the two short-haul Y bookings I have next month and selected the emergency exit seats for both. So the bug you mention does appear to have been fixed. Or, more likely knowing BA's IT systems, it's temperamental.