Very poor customer service after a 2 and half hour flight delay

<p>I traveled from Lanseria to Durban and experienced a 2 and a half hour delay. Afterwards I was contacted for a voucher to compensate for the delay. I have contacted the call centre 4 times. Almost 2 months later I have recieved nothing. Upon discussion with the agents, they confirmed I will recieve the voucher within a few hours however after four phonecalls across the two months,I am very dissapointed with the service. Further I was cut off twice this morning on the phonecall with no response.</p>