Poor Communication and Service

I recently flew on South African Airways with my husband and 1 year old baby. The trip to Mauritius was great. However, on our return trip, as we got to the airport in Mauritius to check in, I received an email to advise that our flight had been cancelled for operational reasons. I fully understand that these things happen, but to notify passengers 2 hours before the flight is due to depart is unacceptable. SAA put us on the next flight out, but I had booked an onward flight from OR Tambo to Cape Town, which was the last flight of the day. So we missed it as a result of the cancelled flight. What was worse was that the SAA ground staff were not at all sympathetic to the fact that we would now need to stay over in Johannesburg (at our own cost) as a result of their poor communication and bad service. I was told that it was not their problem and I should have booked all my flights through SAA. I was also told that I could book the last SAA flight from OR Tambo to Cape Town, but that the flight was full and I would have to buy business class tickets. This is appalling coming from South Africa's national airline. This was a terrible experience for my family and I and I will not be utilizing the services of SAA (for business or pleasure) any time soon.