One order, one click but two diferent prices

I order 13 Cruz vodka at R149, but the order confirmation show 5 items at R149 while 8 items @ R249. I want to cancel online immediately but this function is not available. I appreicate if take a lot can urgently assist cancelling this order as the shopping process do not highlight price increase after 5 items. And take a lot should really reconsider the shopping process where price change in a order as well as cancel function for shoppers. I am getting worry to shop @ take a lot.