Due to risks associated with credit card transactions and the fact that credit card banks retain the right to "chargeback" our account for virtually any reason on a "card not present" transaction, we have had to enforce extremely conservative policies to continue taking credit cards as a form of payment.
For investment type purchases, we request that checks or wires be sent. For credit card orders, we will not take more than $1500 exposure per customer every 30 days. Unfortunately we do not accept PayPal due to the risks and associated costs of accepting it as a form of payment for low margin, high value product.