REFUND FOR SDL Trados Studio 2017, order number 475490

Hello, I would like a refund for SDL Trados Studio 2017 Freelance which I bough on 15th February. My order number is  475490. It is too complicated for me and I was not able even to download it. I need a help with the installation  and I am planning to purchase it through a Slovak company which will help me with installation and which will explain me how to use it. Thank you.