No service, just inconvenience

Unfortunately the lowest score is 1 star which Kulula does not deserve. Last 4 flight bookings have been changed with an sms received. Last change was from 14h35 to 7h00. When trying to make a new booking there are flights available close to the original time. When trying to manage the flight on the website the website returns an error and they dont answer at the call centre. Real non-existent service.