My daughter, who is wheelchair bound and her mom had to just cancel their flight, which was booked 3 months ago

My daughter, who is wheelchair bound and her mom had to just cancel their flight, which was booked 3 months ago. This, because all of a sudden my daughter's wheelchair had to go with separate cargo from the plane. They used the airline a few times before and this was never the procedure, the wheelchair was allowed with the same plane. Maybe it was an unfortunate situation that their policies changed, but how is one supposed to know that, if it is not boldly stated online or anywhere else. The inconvenience was **********, because my daughter's mother had to pay R12 000 more for another flight that will accommodate my daughter's wheelchair. Her mom will only receive her refund in 21 days time and they will arrive at their destination, much later then anticipated. I personally think that Flysafair could of been more accommodating in this instance.