Bad advice due to incompetance

We bought a Lenovo laptop from Hi Fi corp the 10/02/2015 and had a few issues with running problems of being slow but we accepted the fate,we then had a virus through an email or Facebook and it started to make the computer even slower and not work 100%. After formatting the computer we tried to reinstall a downloaded version of windows 8 but the product key did not want to work,it said to be re installed or buy a new key.After going back to Hi Fi corp today and asking for advice from 2 mangers they sent me to Matrix to ask about the issue of not having been given a cd or hard copy of the initial windows 8 program the computer came out with. They told me to tell the people at Hi Fi corp to get a copy or the cd from the manufacturer. I told them this is very bad service and demanded my money back and now they say they have to send a request back to the supplier to refund my money back and it will only be next year. I find this pathetic and all I want is my money back as soon as possible as I bought it from Hi Fi corp and not Lenovo. Please assist me in this endeavor to get my money back.