I have purchased Microsoft Office from SoftwareKing website and installed it on my PC with no problem. It was working fine but about two week later I wasn't able to use it! When I tried to open the program it said that I need to enter a valid product key. I tried to enter the key which I received along with the program but it did not work. So I contacted customer service and asked about my issue. They said they'll give me another key but that never happened! I tried to reach them tons of times, but they just stopped replying. Scammers!! I want my money back!