Thanks for highlighting the most recent news items from BA, c-w-s, particularly the one with the link to the expenses claim process. I've just tried to use it and have been blocked in a way that seems reminiscent of some website issues a few weeks ago.
After choosing which type of claim one is trying to make (baggage, disruption, etc.) you are prompted to login if you are a BAEC member. Once I selected this option I was then told access was blocked because 'unusual traffic had been detected from my computer network.' It may or may not be relevant that one of the interstitial pages had a page title of 'customer portal test page' which doesn't fill one with confidence!
Anyone else seeing a similar issue? It's not urgent for me, luckily I can afford to wait to get my overnight expenses back, but that's not true for everyone.