No refund given and overall terrible service.

I booked a flight in September 2015 from JHB to PE in Feb 2016.I booked 5 months in advance for two reasons,one being to get the best possible price & secondly to make sure I could secure the specific travel time as I am attending a wedding.<br> <br> In December I get an SMS to say my flight has been moved up 10 hours and \sorry for any inconvenience".It was an inconvenience as I am attending a wedding & cannot fly 10 hours later.<br> <br> I called and was told there was nothing they could do to help me.I obviously asked for a refund so I can book on an airline that can actually assist me.They said they would send me a refund form"