Congratulation! You have a promo code. How to use it?
All the codes can be used only(!) before the registration. That means you have to choose the option "Sign up" and enter the promo code in the left bottom field - "I have a promo code". The final step is to press "Apply" there.
The promo code will be applied and a new bonus will appear in the list - it will be marked as chosen.
Next, you can simply continue your registration.
When all is done - the bonus will appear in the "Promotions" section in your account.
Now you are ready to use your free bonus!