It's very easy to use a code. Click on "Show coupon code". Copy the code and look out for the opportunity to use it.
Now that you have a code, let's use it:
1. Go to budget.com.
2. Pick a car, choose a pick up location and the dates you will need and return the car. Fill in the necessary information.
3. There are many options to save, pick one and click on "Get rates".
Tick the option “Use offer code”, type in your code to the field for coupon code and press "View rates". You can also get other deals at Budget by looking through their website.