NO Service!

Flight was delayed on the 29 Sep, but received SMS offering a voucher for the inconvenience - VERY NICE<br> I have now been trying to get hold of them for 4 day's. In 2 day's I've spent R80 in airtime being on hold.<br> I have a flight on Saturday from CT to ORTambo i want to move forward, and instead of paying in, i only want Mango to cover the balance. They can keep there voucher, all i'm asking is that they cover the cost i would need to pay in to make the change!<br> O, and I've send 2 email, coming back as mailbox is over quota!