KULULA CANCELS FLIGHT 14 HOURS BEFORE SHUTDOWN

We had a flight booked for our granddaughter and her mother for Thursday morning at 10:00. She received an sms on Tuesday morning the 24th of March (2 days before the Shut Down, informing her as follows: Due to unforseen circumstances, your flight 0910 has been cancelled. We will be re-booking and notifying you with the new itinerary. To date no e-mail, phone call or sms to re-book them!! They went to the George Airport the same day, wanting to re-book for the Wednesday as it was impossible to get hold of Customer Service or even to try and rebook online. The staff member on duty was not of any assistance, just saying there is nothing she can do and the flights for Wednesday are all full. A man from Mango Airlines came up to them. He overheard the conversation and offered for her to come on Wednesday to be on standby on Mango as almost 80% of passengers are cancelling their flights. But, it would mean that they had to buy new tickets at the cost of R3600, which we could not afford! In the end they had to take the risk to get onto a bus to Gauteng, sharing a small space with all the other passengers and travel for 16 hours to be home before the official Shutdown! We need to have clarity on this - how can KULULA just cancel a flight 14 hours before the official Shutdown time without rescheduling their passengers, NO communication to date whatsoever. We will be insisting on a FULL refund. This is not acceptable from any airline!! I need a respons as soon as possible!!