********* customer service at Kulula

I would like to report kulula for unfair and ********* client services. I booked a flight from East London to JHB for Dec 2020. They canceled my 3pm flight for an 8am flight sent me a message stating that my flight has been canceled I will be booked into an alternative flight without details or times, had to call them to find out the times. I said I can not fly at 8am as I have businesses to attend to, its best if I get my refund as cancelling was not my fault. They refused to give me my refund, I dealt with Shana at the call center. I really can not fly at the time so it means i'm going to forfeit my money. It would be better if the flight was delayed but to but to except people to fly 7 hrs earlier without an option for refund its really unfair and ********* to keep people's money.