Matter regarding change of flight for my dog and compendssation for Uber ride

I would like to bring to your attention a matter that occurred with Mango Airlines at King Shaka Airport on 27 January 2019. I was scheduled to fly with my dog on flight JE 638 from King Shaka to Lanseria. This flight was scheduled to depart at 15:45pm. I had made a reservation on 15 January for my dog to fly with me on this JE638 flight which was 12 days prior to my flight. At the check in counter I was told that the flight had changed and the aircraft now scheduled to fly was a global flight. The global flight was not equipped to carry animals. I was offered a flight that departed later than my original flight i.e 5:30pm and it was heading to O.R Tambo Airport and not Lanseria. I live closer to Lanseria hence my initial booking to Lanseria. Upon landing at O.R Tambo I had to request for an Uber to my home which cost me R333.00. I emailed Mango Airlines on Monday 28 January explaining the matter and requested to be compensated for the Uber ride only. I received an automatic response saying that my matter will be addressed in 48 hours its now Friday (1 February) and I still have not received a response or call. I am only requesting compensation for the cost of the Uber ride I have not factored in the inconvenience of the later flight or the fact that I was not informed earlier regarding the change of flight. Mavesh