Thanks for all the replies. They give me documentary evidence that Tour Operator is wrong in blaming BA.

Reason for question is that tour operator was blaming BA for a 'late' change rather than admitting their systems or staff got it wrong, not for the first time as I had the same BSE - Blame Somebody Else from the Tour Operator when I flew to Denver last September from T3.

Not so much of a problem if Tour Operator admitted they got it wrong - even twice in a row (nobody is perfect), but to blame BA unfairly for their own failings does really annoy me. I am all for honesty when mistakes happen.

Currently in email contact with their MD as same operator has messed up/given wrong reasons for errors on three consecutive tours now. And they are an award winning premium one I have used for nearly 20 years with no problems until last year. Not appropriate that I name them though! The actual tours are excellent and well organised which is why I stick with them.

Tour Operator provides road transport from home to Terminal and I always check they have got it right to avoid delays on day. And of course not to lose time in CX lounge in T3 more importantly if wrongly dropped off at T5 in error needing another transfer!