Some positive feedback re BA and date/time changes .........
Flew first leg of my DONE5 yesterday CAI - LHR. Wanted to make several date/time changes incl flights on AA, CX and QF.
Rang BA (UK) this morning, got a very helpful agent who took all the details and said as it would be about 15-20 mins on hold could he call me back. True to his word he called back within an hour confirming all my changes - before he rang off I checked and they were all showing in MMB and in My Flights.