You will receive Turbobit.net access codes looks like this: yruqyXXX
1. You should be log in at https://turbobit.net/login
or create new account https://turbobit.net/reg
2. Go to page https://turbobit.net/turbo?gaid=head
3. Scroll down and look up field "Enter code here"
4. Fill your Premium Key, then click Activate a premium code