Flight schedule and destination change

I had booked a flight from Jhb to George on the 15th of December at 11:30. We could not be on booked flight due to them moving passengers to a smaller aircraft due to "technical issues". We were told that they could either move us to the Plettenberg flight at 14:30 or the George one the following day. The Plettenberg flight they moved us to was also delayed so we arrived at Plettenberg at 17:10. This was a huge inconvenience as we had commitments during the day, but we ended up arriving late at night. I would not recommend this airline.