If you bought the laptop brand new, it should still be under it's warranty. Considering you didn't do anything to the keyboard, you can get it fixed by dell. However they may take a while to do it. Depending on the model, an option is to buy the keyboard from amazon or any retailer and get somebody to fit it for you, or do it yourself if you can. I ended up having to replace my Dell inspiron 1546 keyboard, luckily for me, I found a tutorial on youtube which made it fairly simple.