Knowledge Base

KNOWLEDGE BASE How GradeZO Shipping Availability Works by Country GradeZO is positioned as a global store serving customers across supported destinations. Why availability can differ Shipping cost, carrier coverage, product restrictions, supplier location and local import rules can affect a specific product or destination. At checkout Enter your delivery country and address to see the […]

KNOWLEDGE BASE How to Read GradeZO Product Reviews and Ratings Use ratings, review counts and written feedback together when comparing products. Look at the count, not only the stars A product with three reviews should display a review count of 3. Review volume and average rating are separate measurements. Check the details Read recent comments, […]

KNOWLEDGE BASE GradeZO Payment Declined or Checkout Error Guide Quick steps for common checkout and payment problems. Confirm your billing details and card information. Try the payment method again after checking your available funds or bank authorization. Disable conflicting browser extensions or try a private window. If the problem continues, contact support with the order […]

KNOWLEDGE BASE How to Cancel a GradeZO Order What to do when you no longer want an order. Act quickly Contact support with your order number as soon as possible. Cancellation depends on whether the order has entered fulfillment or shipped. After shipment A shipped order may need to follow the applicable return process instead […]

KNOWLEDGE BASE How to Change or Update Your GradeZO Shipping Address Learn what to do if your delivery address needs to be corrected or changed. Before your order ships Contact GradeZO support as soon as possible with your order number and the complete corrected address. Address changes are not guaranteed after fulfillment begins. If the […]