1. You will receive a Premium key should look like this: 483rihzneknbk8vxw

2. Log in to your account: https://florenfile.com/login.html

(If you haven't account, you just need to register free account)

3. Then access: https://florenfile.com/?op=my_account

4. Put your premium key in field "Apply Premium Key", and click on "Apply"