Vuka Data company doesn't honor what it says it does, I bought OTT voucher as it says you should ...

Vuka Data company doesn't honor what it says it does, I bought OTT voucher as it says you should in order to buy cheap data on any South African Networks (Mobile) and my data has still not loaded and the worst part is that all these ways of contacting them are not working their email address isn't real or it's invalid Whatsapp chat is offline since the 2nd of this month their number doesn't go through ... I have ran out of options ....