As a piece of advise to a buyer, don't ever threaten credit card chargeback or PayPal dispute due to lack of email response (within few days). Neither processor requires sellers send emails and neither require shipment within a short period of time. Filing a chargeback is an accusation of fraud and is itself a fraudulent act if baseless. PayPal also advises against that route and can and will terminate your account if you circumvent their procedures. Lastly, above all, never post about this in a public forum.
If I were rhboyd you'd have your refund now and no way I'd be shipping the goods to you. You're what's classified as high-risk customer and more often than not, much more trouble and costly than the potential profit of a particular sale.