A copy of the receipt is required. This is required for two reasons. First, to show that it's still under the manufacturer warranty. Second, this is the only way to show that it was purchased from an authorized reseller. Another option would be a rebate submission. A credit card statement will only work if it showed the actually model number of the unit.
There are 2 options to choose from. A standard RMA or a cross-shipment RMA. A standard RMA will require you to send your defective unit to us first. Once received, a replacement unit will be sent to you within 24-48 hrs. A cross-shipment is an advanced shipment. This requires your credit card information. The replacement unit will be sent to you within 24-48 hrs after creating the cross-shipment. You are still required to send back your defective unit. Please see the cross-shipment agreement online for further details. Hope this helps.