I want my R426.00 back. I have never received my order.

I purchased makeup online for R426.00 but have not received it. The money has come off my account but there is no record of purchase on my online profile. I have provided the proof of payment (as requested to) and I have heard nothing back from Mac. I am irritated that I need to chase Mac for my money after the problem was with the company's website, to begin with. I want my money back. The email requesting proof of payment was sent: Wednesday, February 20, 2019 2:39:28 PM. from 'MAC Cosmetics Online'.