Yes today when I checked in 10 min after check in open, I found out we no longer at 8ab but to 26cd?!
I moved us to 11ab, c is occupied from the very beginning. Then returned tried to change seat again and there is no option to change at all!
Very unfriendly system.
Also there is no toll free number for UK?! WOW, no toll free number for BA's home country but there is one for US. This is truly hostile to its customers.