Delayed Lift Flight!

First time we booked with Lift Airline! Family arrived at OR Tambo 2 hours before flight, just to find out that flight is delayed for about 4 hours!! They travelled more than 3 hours to OR Tambo just to find out flight is delayed. We had to leave CPT airport to a fully paid weekend away for my 50th birthday. Now they will only arrive at night and make it very difficult to travel at night. Its really very disappointing. No phones are working. No one reply on email! So so bad!