I'm gonna get nasty here, wtf did you buy something you did not want that you could have gotten an alternative from a different shop?
You paid R4800 for a RX470 (assuming it's the 8GB version), which is stoopid when you could have purchased a gtx 1060 galax for R4800 or Zotac for R4900 from wootware.
You can try and return the card within 7 day and say you are not happy with it for a full cash refund or contact your credit card company if purchased via a CC for a reversal.