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." This strikes me as a strange response. It didn't say the card was declined; it said it "cannot be used." Also, the response was awfully quick so it didn't seem to be from the credit card processor, but from PayPal. I setup e-commerce sites so am very familiar with on-line credit card processing. Also, I just used this card online a couple of days ago successfully, and I know I have plenty of available credit. Has anybody else gotten an error like this? I suspect PayPal is blocking this, not my credit card company. I suspect, too, PayPal is doing this to reduce their own costs rather than protect centos.org or me from a fraudulent transaction. I have a PayPal account that was set up a few years back as a test based on a PayPal offer to me, have never used beyond setting up, but which PayPal has suspended. I'm not interested in using this account nor jumping through the hoops they require. I may have entered this credit card in that account. I suspect PayPal is blocking this credit card number to push me to re-open my PayPal account. Am I just being paranoid? Take care, Kurt Hansen