Please help i need a refund.....

I have purchase a per of sneakers from them , and today i have received my order and the only reason why I purchase from them the website looks perfect and they also have tax number : *** / Reg: *** Problem started now because i want to return the shoes I dont like the quality and their sizes as well, when i contact that number is voice mail *** *** *** Milnerton 7441 Cape Town, Western cape 7441 South Africa