Mail them every 2nd day at
[email protected]. if they do not release your payment. Than simply file chargeback with your bank whose credit card you swiped. While filing chargeback do not say that your swiped at your own business. Simply say that you swiped at merchant and merchant is not able to provide goods as agreed. He is also denying to refund the amount. Within 10 -14 days you'll get mail from fiserv that chargeback has been filed against you. Simply say that your payment is held by fiserv , attach email you received from
[email protected]. and say that you accept this chargeback and refund the transaction to cardholder.