All sales are final
Research materials are sold on a final-sale basis. Returns, routine refunds and exchanges are not accepted. Review the WX code, material name, kit size, quantities and delivery details before confirming an order.
Items damaged in transit
Items damaged during shipping are replaced. Keep the outer carton, protective packaging and affected items. Contact orders@zlresearch.com with your order number, a description of the issue and clear photographs of the packaging and damage.
Do not return items without instructions
Do not send materials back without written instructions. We will review the information, confirm the affected order lines and explain the replacement arrangements. This draft does not create a public return address.
Incorrect or incomplete delivery
If the contents do not match the confirmed invoice, contact wholesale before opening or further handling the affected containers. Include the order number and photographs so that the issue can be reviewed and the appropriate next step confirmed.
Unavailability before fulfilment
If a material cannot be supplied, we will contact you to agree on next steps before fulfilment. Confirm availability and the final invoice before transferring funds.
Payment-provider processes
For any payment question, contact wholesale with the order number and payment confirmation. Provider rules may apply.
Policy review
The final policy requires legal and operational review before public launch.