BA is getting worse and worse, and this is a shame. They moved the London-Sao Paulo flight from Terminal 5 to Terminal 3, which is much worse in all respects (lounges, shops, infra, etc.). Ground crew was terrible at check-in (without limitation, we found out at check-in that my wife was downgraded from business club to premium executive (overbooking) and then after much complaints she was moved back into club business). During the flight, I found out that my seat on club business was broken and it had to be manually operated. The flight crew was very unhelpful and wanted to move me to premium economy [during the flight] as a solution to my broken seat [in club business] so that they didn't have to manually operate my seat - which I of course didn't accept. On the bright side, our checked-in baggage arrived unharmed in Sao Paulo - which was not the case on my last flight with BA in February/2022 [and it is amazing that I was happy and relieved that they actually complied with at least one of their duties !].