Kurt Hansen wrote: > Hello, > > I tried making a donation via the centos.org website but was blocked > by PayPal. I tried today and a few weeks ago. > > The error I got in both instances was: > > "The card you entered cannot be used for this payment. Please enter a > different credit or debit card number." I remembered something else. When I first started using paypal a few years ago purely to make CC payments to other people, it only let me use a credit card about 3-4 times before I had to register for a proper paypal account.