... customers, we can supply the materials or tech support to them, help them fix the problems in their hands5. ... We will pay the delivery charge from us to customers if the repair, return or replacement cases happen. ... DHL, UPS, EMS, FEDEX, TNT or airfreight, If need to by send by sea, we can discuss together. for DHL ... , UPS, need about 3-4 days to delivery, Fedex, about 2-3 days.