UBER DRIVER HOLDING CLIENT AT RANSOM

CAPE TOWN UBER Driver accepted trip then immediately phoned to indicate he will be unable to make it in time and I must cancel the trip and find someone else. In essence was held at RANSOM because if I do not cancel , I cannot rebook and I have a flight to catch (clever scheme). This is ********* behaviour. Had to revert by calling traditional Taxi service. I want my money back and this issue escalated. Specifically to establish if this is a repeating pattern. In my view it is a RISK to use UBER.