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What are common issues with promo codes, and how can they be resolved?

Updated over 2 weeks ago

Common Issues with Promo Codes and Their Resolutions

Promo codes are a great way to save money, but they sometimes don’t work as expected. Below, we outline common scenarios that could lead to errors or issues when using promo codes and provide effective solutions.

Overview of Promo Code Guidelines

Promo codes come with specific eligibility criteria and terms. It’s essential to ensure:

  • The promo code you’re using is valid and has not expired.

  • You meet all restrictions and eligibility requirements, such as being a new customer for specific promotions, or ensuring the code is applicable to the item in your cart.

When these conditions aren’t met, errors may occur, leading to payment voiding or submission failures for your order. Always check promo code details carefully before applying them.

Troubleshooting Common Promo Code Errors

1. Invalid Promo Codes

  • Cause: Using an expired or ineligible promotion, such as a "new-customer-only" code for an existing customer.

  • Solution: Remove the invalid promo code and apply one you are eligible for before retrying the order.

2. Usage Limitations

  • Cause: Many promotions are tied to usage limits, such as a maximum number of redemptions per account or household.

  • Solution: If you hit the limit, try opting for another valid promotion.

3. Item or Brand Restrictions

Certain discount codes are restricted to specific items or brands. Examples include:

  • Designer frames: Promo codes for free frames often apply only to KITS-brand frames and not designer frames.

  • Lens-related discounts: Codes sometimes apply only to lens upgrades, not to standard lenses, which may already be free.

Check the terms of the promo code to make sure it applies to the items in your cart.

4. Maximum Discount Caps

  • Cause: Some promotions, particularly percentage-based ones, have a maximum discount cap.

  • Solution: Be aware of maximum caps before applying codes, as further discounts beyond the cap are not possible.

5. Promo Requirements for Contact Lenses

  • Cause: Errors occur if the minimum purchase requirement for promo application isn't met. For example, some promos require at least two boxes of the same lens type.

  • Solution: Add the required number of items, ensuring one box per eye (or two of the same type), and reattempt checkout.

Resolving Post-Checkout Promo Code Issues

If a discount doesn’t apply during checkout but the promo code is valid:

  • The system may adjust your order after you've placed it by applying the promo discount and processing a refund for the discounted amount.

  • An updated receipt will be sent to your email. Refunds typically take 1–3 business days to process.


Taking these steps can help resolve most issues and ensure promo codes work seamlessly during checkout. If you continue experiencing difficulties, contact our support team for assistance.

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