Short answer: enter your promo code during checkout before completing payment.
- Choose your destination or regional plan.
- Go to checkout.
- Find the promo code or coupon field.
- Enter the code exactly as provided.
- Confirm the discount is applied before paying.
If the promo code does not work
- Check spelling and spaces.
- Confirm the code has not expired.
- Check whether the code applies to the selected plan.
- Contact 4S support through support@4s.net, a Zendesk support ticket, or Zendesk live chat with the code and a screenshot of the checkout page.