Flysafair ******* from website

I would have given it 0 stars but thats the lowest im able to go! I made a flight booking and after a few weeks my job(i work abroad) required me to stay longer in the US. I changed the booking and paid for the change of flights fee, no problem. When changing my return flights i selected 5 october but my confirmation said the 26th of ocrober. Immediately i rebooked again paying again cause i need a flight back home! Now Flysafair (Keenin) tell me their not responsoble for wrong bookings online! Im soooo ****ed really thibk of helping these domestic companies i could have flew in royalty with British airways but this is what i get, i demand they sort this out asap since R700 isnt small change when ****** by another company!