Very disappointed... help me or refund me please

I bought a Canon EOS 200D from Dion Wired on 23 Dec 17. Sadly there were no interface cable included to connect with my laptop. I successfully downloaded the EOS utility software to transfer the photo's electronically exactly as instructed in the manual. The software does not want to open when I double click on it. I googled Canon South Africa for support but other than warranty/repair support none other available. Tomorrow will be 2 weeks since I bought the camera. If CANON cannot sort my frustration out I will stick to my current Olympus camera and I would appreciate a full refund on the purchase price.