6 Time's the charm

Having purchased a large item on eBay I was hoping to pay for it via credit card but not Paypal so I could get airline miles through American Express, so I Buy It Nowed the thing and clicked “credit card” on check-out.  I shortly got a note from the seller telling me to pay via credit card and I replied that I was waiting so he sent me an invoice.  The invoice of course, simply contained the selling information.  I replied that it didn’t contain the correct information, and in response got another invoice.  I again asked how I could pay and sent, another invoice.  All said and done I’ve received 5 invoices for the same item all containing the same information and am weighing just taking a point of negative feedback against trusting this man with my credit card number.