Worst online shopping experience

Today I ordered three items on Takealot. Going through the delivery method. I wanted the fast track delivery. However because I was using my voucher the items were purchased with the standard delivery. Im now told that the delivery will happen on the 2 Jan, which defeats the whole purpose as the items are gifts for Christmas. I then wanted to cancel the order. The system doesn't allow ( rediculious processes). I called in customer service ( after searching for the number for 20min on the net). I'm told they can't help with the delivery. So I've asked to cancel the order and be reimbursed. They can't reimburse me my money ( I don't want vouchers anymore).I thought buying the vouchers and using them on the site to buy gifts would be handing. It seems to me, it has been nothing but trouble so far. All I want is the items delivered before Christmas or my money back ( not vouchers) and none of those can be done. The worst online shopping experience ever.