To take advantage of the Vons.Com Existing User, you typically needed to verify your student status through a third-party verification service like UNiDAYS or Student Beans.
These platforms are commonly used by various retailers to confirm a student eligibility for discounts.
You would need to sign up for an account on one of these platforms and provide proof of your student status,
such as a valid student email address or other documentation from your educational institution.
These Vons.Com Existing User have been reported as expired or no longer working. However, it might be worth trying some of these codes, just in case you score a discount.