Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
It is possible to READ existing books on the kindle.
The kindle does require a wifi connection for the initial setup/registration.
After that, you don't need an internet connection except to load new content to the kindle.
If you don't have regular wifi access, you can download books (assuming you have access to a computer with an internet connection - friends, library, etc) to your computer and then transfer them to the kindle via usb.