I just called BA to ask if I could cancel 5 of the 6 holidays booked into 2025 and asked that given the change in the BA Club terms, they'd be happy to offer a full refund. Agent put me on hold to talk to his supervisor. Unsurprisingly came back to say it will be cancellations based on Terms and Conditions, which is pretty much what I expected. The real intent was to find a means of creating a data point to support the level of anger and future intent. Not a boycott, but going forward, I'm only booking a BA Holiday/flight if it proves to be extraordinary value over the competition, so I will be less profitable for BA.