Flight missed due to unclear message

Our flight was booked for Saturday the 14 Feb to depart at 10:30 in the morning. On Thursday I received a call and message advising that the flight had been cancelled and that our departure time has been moved to 12:00. I said that was fine. On arriving to check in we discovered that it was our return flight that had been changed and not the departure flight. We now had the privilege of paying for the confusion and being referred to the response centre to state our case. Our flights were changed by the clerk at cost and we were left to go on our merry way and deal with the inconvenience ourselves. Well done kulula.