New Subscriber – No Guidance!

Ok I knew it was a mistake to subscribe to your service for 12 months. Ten minutes later and I am ready to ask for refund. I down loaded a wpmudev dashboard!! What is that all about? Where does it go? What do I do with it? What is the API key for?

What about some BASIC level guidance please? Within 10 minutes I am stuffed as I have no idea what to do with what I downloaded? Advise please, with some useful basic guidance, or just tell me how to get a refund? Thank you.