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Two days now of trying to send a package. Will not work with my credit card (even called to bank to check, and all is fine on their end), and also will not work with PayPal. I have cleared cookies on three different browsers (Chrome, IE, and Safari), and tried on both OSX and Windows 7. I am not happy about having to pay $10 extra and stand in line at the Post Office to get this package out the door. Fix your bloody card-verification systems USPS.