Consumables will not be supplied with any worth assurance. No return and no refund. Should you desire to swap any brand new consumable purchases for a unsimilar width/model/batch, you can simply pay the amount if the replaced package is of bigger worth.
No quality warranty is provided for any consumables. No return and no refund. Exchange is allowed for unused and intact (unopened if sealed) consumable purchases should you need to exchange it for a different size/model/package and you can simply pay the balance if exchanged package is of higher value within few days after purchase.